Home / 31,531.87-47,305.23-9,345.43

Finding the Fourth Proportional to 31,531.87, 47,305.23 and 9,345.43

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Solution

The fourth proportional to 31,531.87, 47,305.23 and 9,345.43 is: 14,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.87 : 47,305.23 = 9,345.43 : x
  2. Step 2: Convert to fraction form
    31,531.87/47,305.23 = 9,345.43/x
  3. Step 3: Cross multiply
    31,531.87x = 47,305.23 × 9,345.43
  4. Step 4: Simplify right side
    31,531.87x = 442,087,715.60
  5. Step 5: Solve for x
    x = 442,087,715.60/31,531.87
  6. Step 6: Final answer
    x = 14,020.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.