Home / 25,691.52-38,501.05-12,168.34

Finding the Fourth Proportional to 25,691.52, 38,501.05 and 12,168.34

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Solution

The fourth proportional to 25,691.52, 38,501.05 and 12,168.34 is: 18,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.52 : 38,501.05 = 12,168.34 : x
  2. Step 2: Convert to fraction form
    25,691.52/38,501.05 = 12,168.34/x
  3. Step 3: Cross multiply
    25,691.52x = 38,501.05 × 12,168.34
  4. Step 4: Simplify right side
    25,691.52x = 468,493,866.76
  5. Step 5: Solve for x
    x = 468,493,866.76/25,691.52
  6. Step 6: Final answer
    x = 18,235.35

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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.