Home / 22,788.32-31,446.96-12,717.20

Finding the Fourth Proportional to 22,788.32, 31,446.96 and 12,717.20

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Solution

The fourth proportional to 22,788.32, 31,446.96 and 12,717.20 is: 17,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,788.32 : 31,446.96 = 12,717.20 : x
  2. Step 2: Convert to fraction form
    22,788.32/31,446.96 = 12,717.20/x
  3. Step 3: Cross multiply
    22,788.32x = 31,446.96 × 12,717.20
  4. Step 4: Simplify right side
    22,788.32x = 399,917,279.71
  5. Step 5: Solve for x
    x = 399,917,279.71/22,788.32
  6. Step 6: Final answer
    x = 17,549.22

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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.