Home / 31,503.28-47,191.82-18,985.44

Finding the Fourth Proportional to 31,503.28, 47,191.82 and 18,985.44

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Solution

The fourth proportional to 31,503.28, 47,191.82 and 18,985.44 is: 28,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503.28 : 47,191.82 = 18,985.44 : x
  2. Step 2: Convert to fraction form
    31,503.28/47,191.82 = 18,985.44/x
  3. Step 3: Cross multiply
    31,503.28x = 47,191.82 × 18,985.44
  4. Step 4: Simplify right side
    31,503.28x = 895,957,283.69
  5. Step 5: Solve for x
    x = 895,957,283.69/31,503.28
  6. Step 6: Final answer
    x = 28,440.13

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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.