Home / 31,505.89-47,268.07-9,319.86

Finding the Fourth Proportional to 31,505.89, 47,268.07 and 9,319.86

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Solution

The fourth proportional to 31,505.89, 47,268.07 and 9,319.86 is: 13,982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.89 : 47,268.07 = 9,319.86 : x
  2. Step 2: Convert to fraction form
    31,505.89/47,268.07 = 9,319.86/x
  3. Step 3: Cross multiply
    31,505.89x = 47,268.07 × 9,319.86
  4. Step 4: Simplify right side
    31,505.89x = 440,531,794.87
  5. Step 5: Solve for x
    x = 440,531,794.87/31,505.89
  6. Step 6: Final answer
    x = 13,982.52

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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.