Home / 22,718.43-31,351.10-12,646.87

Finding the Fourth Proportional to 22,718.43, 31,351.10 and 12,646.87

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Solution

The fourth proportional to 22,718.43, 31,351.10 and 12,646.87 is: 17,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.43 : 31,351.10 = 12,646.87 : x
  2. Step 2: Convert to fraction form
    22,718.43/31,351.10 = 12,646.87/x
  3. Step 3: Cross multiply
    22,718.43x = 31,351.10 × 12,646.87
  4. Step 4: Simplify right side
    22,718.43x = 396,493,144.44
  5. Step 5: Solve for x
    x = 396,493,144.44/22,718.43
  6. Step 6: Final answer
    x = 17,452.49

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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.