Home / 22,717.50-31,349.81-12,645.92

Finding the Fourth Proportional to 22,717.50, 31,349.81 and 12,645.92

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Solution

The fourth proportional to 22,717.50, 31,349.81 and 12,645.92 is: 17,451.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,717.50 : 31,349.81 = 12,645.92 : x
  2. Step 2: Convert to fraction form
    22,717.50/31,349.81 = 12,645.92/x
  3. Step 3: Cross multiply
    22,717.50x = 31,349.81 × 12,645.92
  4. Step 4: Simplify right side
    22,717.50x = 396,447,299.26
  5. Step 5: Solve for x
    x = 396,447,299.26/22,717.50
  6. Step 6: Final answer
    x = 17,451.19

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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.