Home / 31,711.59-43,752.15-18,281.12

Finding the Fourth Proportional to 31,711.59, 43,752.15 and 18,281.12

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Solution

The fourth proportional to 31,711.59, 43,752.15 and 18,281.12 is: 25,222.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.59 : 43,752.15 = 18,281.12 : x
  2. Step 2: Convert to fraction form
    31,711.59/43,752.15 = 18,281.12/x
  3. Step 3: Cross multiply
    31,711.59x = 43,752.15 × 18,281.12
  4. Step 4: Simplify right side
    31,711.59x = 799,838,085.65
  5. Step 5: Solve for x
    x = 799,838,085.65/31,711.59
  6. Step 6: Final answer
    x = 25,222.26

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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.