Home / 22,587.75-31,171.55-13,156.92

Finding the Fourth Proportional to 22,587.75, 31,171.55 and 13,156.92

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Solution

The fourth proportional to 22,587.75, 31,171.55 and 13,156.92 is: 18,156.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,587.75 : 31,171.55 = 13,156.92 : x
  2. Step 2: Convert to fraction form
    22,587.75/31,171.55 = 13,156.92/x
  3. Step 3: Cross multiply
    22,587.75x = 31,171.55 × 13,156.92
  4. Step 4: Simplify right side
    22,587.75x = 410,121,523.84
  5. Step 5: Solve for x
    x = 410,121,523.84/22,587.75
  6. Step 6: Final answer
    x = 18,156.81

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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.