Home / 31,432.71-47,138.98-10,368.02

Finding the Fourth Proportional to 31,432.71, 47,138.98 and 10,368.02

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Solution

The fourth proportional to 31,432.71, 47,138.98 and 10,368.02 is: 15,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.71 : 47,138.98 = 10,368.02 : x
  2. Step 2: Convert to fraction form
    31,432.71/47,138.98 = 10,368.02/x
  3. Step 3: Cross multiply
    31,432.71x = 47,138.98 × 10,368.02
  4. Step 4: Simplify right side
    31,432.71x = 488,737,887.42
  5. Step 5: Solve for x
    x = 488,737,887.42/31,432.71
  6. Step 6: Final answer
    x = 15,548.70

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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.