Home / 31,429.52-47,144.50-9,243.21

Finding the Fourth Proportional to 31,429.52, 47,144.50 and 9,243.21

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Solution

The fourth proportional to 31,429.52, 47,144.50 and 9,243.21 is: 13,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,429.52 : 47,144.50 = 9,243.21 : x
  2. Step 2: Convert to fraction form
    31,429.52/47,144.50 = 9,243.21/x
  3. Step 3: Cross multiply
    31,429.52x = 47,144.50 × 9,243.21
  4. Step 4: Simplify right side
    31,429.52x = 435,766,667.53
  5. Step 5: Solve for x
    x = 435,766,667.53/31,429.52
  6. Step 6: Final answer
    x = 13,864.89

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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.