Home / 31,755.06-47,654.46-10,978.56

Finding the Fourth Proportional to 31,755.06, 47,654.46 and 10,978.56

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Solution

The fourth proportional to 31,755.06, 47,654.46 and 10,978.56 is: 16,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,755.06 : 47,654.46 = 10,978.56 : x
  2. Step 2: Convert to fraction form
    31,755.06/47,654.46 = 10,978.56/x
  3. Step 3: Cross multiply
    31,755.06x = 47,654.46 × 10,978.56
  4. Step 4: Simplify right side
    31,755.06x = 523,177,348.38
  5. Step 5: Solve for x
    x = 523,177,348.38/31,755.06
  6. Step 6: Final answer
    x = 16,475.40

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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.