Home / 22,353.91-30,878.24-15,661.69

Finding the Fourth Proportional to 22,353.91, 30,878.24 and 15,661.69

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Solution

The fourth proportional to 22,353.91, 30,878.24 and 15,661.69 is: 21,634.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,353.91 : 30,878.24 = 15,661.69 : x
  2. Step 2: Convert to fraction form
    22,353.91/30,878.24 = 15,661.69/x
  3. Step 3: Cross multiply
    22,353.91x = 30,878.24 × 15,661.69
  4. Step 4: Simplify right side
    22,353.91x = 483,605,267.12
  5. Step 5: Solve for x
    x = 483,605,267.12/22,353.91
  6. Step 6: Final answer
    x = 21,634.04

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Find fourth proportional to 11,176.95, 15,439.12 and 7,830.84
Half scale
Find fourth proportional to 44,707.82, 61,756.47 and 31,323.38
Double scale
Find fourth proportional to 22,354.91, 30,879.62 and 15,662.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.