Home / 31,943.08-47,882.22-15,278.68

Finding the Fourth Proportional to 31,943.08, 47,882.22 and 15,278.68

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Solution

The fourth proportional to 31,943.08, 47,882.22 and 15,278.68 is: 22,902.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,943.08 : 47,882.22 = 15,278.68 : x
  2. Step 2: Convert to fraction form
    31,943.08/47,882.22 = 15,278.68/x
  3. Step 3: Cross multiply
    31,943.08x = 47,882.22 × 15,278.68
  4. Step 4: Simplify right side
    31,943.08x = 731,577,117.07
  5. Step 5: Solve for x
    x = 731,577,117.07/31,943.08
  6. Step 6: Final answer
    x = 22,902.52

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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.