Home / 31,363.17-47,039.90-9,171.33

Finding the Fourth Proportional to 31,363.17, 47,039.90 and 9,171.33

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Solution

The fourth proportional to 31,363.17, 47,039.90 and 9,171.33 is: 13,755.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.17 : 47,039.90 = 9,171.33 : x
  2. Step 2: Convert to fraction form
    31,363.17/47,039.90 = 9,171.33/x
  3. Step 3: Cross multiply
    31,363.17x = 47,039.90 × 9,171.33
  4. Step 4: Simplify right side
    31,363.17x = 431,418,400.21
  5. Step 5: Solve for x
    x = 431,418,400.21/31,363.17
  6. Step 6: Final answer
    x = 13,755.57

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1.5x scale

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.