Home / 22,713.45-31,344.17-12,641.60

Finding the Fourth Proportional to 22,713.45, 31,344.17 and 12,641.60

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Solution

The fourth proportional to 22,713.45, 31,344.17 and 12,641.60 is: 17,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,713.45 : 31,344.17 = 12,641.60 : x
  2. Step 2: Convert to fraction form
    22,713.45/31,344.17 = 12,641.60/x
  3. Step 3: Cross multiply
    22,713.45x = 31,344.17 × 12,641.60
  4. Step 4: Simplify right side
    22,713.45x = 396,240,474.62
  5. Step 5: Solve for x
    x = 396,240,474.62/22,713.45
  6. Step 6: Final answer
    x = 17,445.19

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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.