Home / 31,943.76-47,949.12-15,317.88

Finding the Fourth Proportional to 31,943.76, 47,949.12 and 15,317.88

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Solution

The fourth proportional to 31,943.76, 47,949.12 and 15,317.88 is: 22,992.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,943.76 : 47,949.12 = 15,317.88 : x
  2. Step 2: Convert to fraction form
    31,943.76/47,949.12 = 15,317.88/x
  3. Step 3: Cross multiply
    31,943.76x = 47,949.12 × 15,317.88
  4. Step 4: Simplify right side
    31,943.76x = 734,478,866.27
  5. Step 5: Solve for x
    x = 734,478,866.27/31,943.76
  6. Step 6: Final answer
    x = 22,992.87

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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.