Home / 25,451.52-38,174.40-7,921.92

Finding the Fourth Proportional to 25,451.52, 38,174.40 and 7,921.92

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Solution

The fourth proportional to 25,451.52, 38,174.40 and 7,921.92 is: 11,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.52 : 38,174.40 = 7,921.92 : x
  2. Step 2: Convert to fraction form
    25,451.52/38,174.40 = 7,921.92/x
  3. Step 3: Cross multiply
    25,451.52x = 38,174.40 × 7,921.92
  4. Step 4: Simplify right side
    25,451.52x = 302,414,542.85
  5. Step 5: Solve for x
    x = 302,414,542.85/25,451.52
  6. Step 6: Final answer
    x = 11,881.98

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1.5x scale

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.