Home / 31,372.38-47,077.07-11,664.68

Finding the Fourth Proportional to 31,372.38, 47,077.07 and 11,664.68

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Solution

The fourth proportional to 31,372.38, 47,077.07 and 11,664.68 is: 17,503.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372.38 : 47,077.07 = 11,664.68 : x
  2. Step 2: Convert to fraction form
    31,372.38/47,077.07 = 11,664.68/x
  3. Step 3: Cross multiply
    31,372.38x = 47,077.07 × 11,664.68
  4. Step 4: Simplify right side
    31,372.38x = 549,138,663.18
  5. Step 5: Solve for x
    x = 549,138,663.18/31,372.38
  6. Step 6: Final answer
    x = 17,503.89

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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.