Home / 31,139.40-46,711.26-8,952.96

Finding the Fourth Proportional to 31,139.40, 46,711.26 and 8,952.96

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Solution

The fourth proportional to 31,139.40, 46,711.26 and 8,952.96 is: 13,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,139.40 : 46,711.26 = 8,952.96 : x
  2. Step 2: Convert to fraction form
    31,139.40/46,711.26 = 8,952.96/x
  3. Step 3: Cross multiply
    31,139.40x = 46,711.26 × 8,952.96
  4. Step 4: Simplify right side
    31,139.40x = 418,204,042.33
  5. Step 5: Solve for x
    x = 418,204,042.33/31,139.40
  6. Step 6: Final answer
    x = 13,430.06

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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.