Home / 34,162.28-51,221.34-13,387.88

Finding the Fourth Proportional to 34,162.28, 51,221.34 and 13,387.88

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Solution

The fourth proportional to 34,162.28, 51,221.34 and 13,387.88 is: 20,073.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,162.28 : 51,221.34 = 13,387.88 : x
  2. Step 2: Convert to fraction form
    34,162.28/51,221.34 = 13,387.88/x
  3. Step 3: Cross multiply
    34,162.28x = 51,221.34 × 13,387.88
  4. Step 4: Simplify right side
    34,162.28x = 685,745,153.36
  5. Step 5: Solve for x
    x = 685,745,153.36/34,162.28
  6. Step 6: Final answer
    x = 20,073.17

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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.