Home / 31,505.76-47,268.66-9,319.26

Finding the Fourth Proportional to 31,505.76, 47,268.66 and 9,319.26

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Solution

The fourth proportional to 31,505.76, 47,268.66 and 9,319.26 is: 13,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.76 : 47,268.66 = 9,319.26 : x
  2. Step 2: Convert to fraction form
    31,505.76/47,268.66 = 9,319.26/x
  3. Step 3: Cross multiply
    31,505.76x = 47,268.66 × 9,319.26
  4. Step 4: Simplify right side
    31,505.76x = 440,508,932.39
  5. Step 5: Solve for x
    x = 440,508,932.39/31,505.76
  6. Step 6: Final answer
    x = 13,981.85

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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.