Home / 31,839.28-47,742.50-14,294.06

Finding the Fourth Proportional to 31,839.28, 47,742.50 and 14,294.06

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Solution

The fourth proportional to 31,839.28, 47,742.50 and 14,294.06 is: 21,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,839.28 : 47,742.50 = 14,294.06 : x
  2. Step 2: Convert to fraction form
    31,839.28/47,742.50 = 14,294.06/x
  3. Step 3: Cross multiply
    31,839.28x = 47,742.50 × 14,294.06
  4. Step 4: Simplify right side
    31,839.28x = 682,434,159.55
  5. Step 5: Solve for x
    x = 682,434,159.55/31,839.28
  6. Step 6: Final answer
    x = 21,433.72

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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.