Home / 22,790.25-31,449.24-12,717.90

Finding the Fourth Proportional to 22,790.25, 31,449.24 and 12,717.90

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Solution

The fourth proportional to 22,790.25, 31,449.24 and 12,717.90 is: 17,549.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,790.25 : 31,449.24 = 12,717.90 : x
  2. Step 2: Convert to fraction form
    22,790.25/31,449.24 = 12,717.90/x
  3. Step 3: Cross multiply
    22,790.25x = 31,449.24 × 12,717.90
  4. Step 4: Simplify right side
    22,790.25x = 399,968,304.43
  5. Step 5: Solve for x
    x = 399,968,304.43/22,790.25
  6. Step 6: Final answer
    x = 17,549.97

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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.