Home / 43,306.31-64,963.15-12,141.56

Finding the Fourth Proportional to 43,306.31, 64,963.15 and 12,141.56

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Solution

The fourth proportional to 43,306.31, 64,963.15 and 12,141.56 is: 18,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,306.31 : 64,963.15 = 12,141.56 : x
  2. Step 2: Convert to fraction form
    43,306.31/64,963.15 = 12,141.56/x
  3. Step 3: Cross multiply
    43,306.31x = 64,963.15 × 12,141.56
  4. Step 4: Simplify right side
    43,306.31x = 788,754,115.57
  5. Step 5: Solve for x
    x = 788,754,115.57/43,306.31
  6. Step 6: Final answer
    x = 18,213.38

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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.