Home / 28,134.82-42,189.92-13,347.96

Finding the Fourth Proportional to 28,134.82, 42,189.92 and 13,347.96

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Solution

The fourth proportional to 28,134.82, 42,189.92 and 13,347.96 is: 20,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.82 : 42,189.92 = 13,347.96 : x
  2. Step 2: Convert to fraction form
    28,134.82/42,189.92 = 13,347.96/x
  3. Step 3: Cross multiply
    28,134.82x = 42,189.92 × 13,347.96
  4. Step 4: Simplify right side
    28,134.82x = 563,149,364.56
  5. Step 5: Solve for x
    x = 563,149,364.56/28,134.82
  6. Step 6: Final answer
    x = 20,016.10

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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.