Home / 43,134.31-64,708-13,549.37

Finding the Fourth Proportional to 43,134.31, 64,708 and 13,549.37

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Solution

The fourth proportional to 43,134.31, 64,708 and 13,549.37 is: 20,326.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,134.31 : 64,708 = 13,549.37 : x
  2. Step 2: Convert to fraction form
    43,134.31/64,708 = 13,549.37/x
  3. Step 3: Cross multiply
    43,134.31x = 64,708 × 13,549.37
  4. Step 4: Simplify right side
    43,134.31x = 876,752,633.96
  5. Step 5: Solve for x
    x = 876,752,633.96/43,134.31
  6. Step 6: Final answer
    x = 20,326.11

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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.