Home / 31,752.38-43,816.15-18,324.20

Finding the Fourth Proportional to 31,752.38, 43,816.15 and 18,324.20

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Solution

The fourth proportional to 31,752.38, 43,816.15 and 18,324.20 is: 25,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,752.38 : 43,816.15 = 18,324.20 : x
  2. Step 2: Convert to fraction form
    31,752.38/43,816.15 = 18,324.20/x
  3. Step 3: Cross multiply
    31,752.38x = 43,816.15 × 18,324.20
  4. Step 4: Simplify right side
    31,752.38x = 802,895,895.83
  5. Step 5: Solve for x
    x = 802,895,895.83/31,752.38
  6. Step 6: Final answer
    x = 25,286.16

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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.