Home / 22,728.12-31,365.73-12,655.92

Finding the Fourth Proportional to 22,728.12, 31,365.73 and 12,655.92

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Solution

The fourth proportional to 22,728.12, 31,365.73 and 12,655.92 is: 17,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,728.12 : 31,365.73 = 12,655.92 : x
  2. Step 2: Convert to fraction form
    22,728.12/31,365.73 = 12,655.92/x
  3. Step 3: Cross multiply
    22,728.12x = 31,365.73 × 12,655.92
  4. Step 4: Simplify right side
    22,728.12x = 396,962,169.62
  5. Step 5: Solve for x
    x = 396,962,169.62/22,728.12
  6. Step 6: Final answer
    x = 17,465.68

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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.