Home / 25,726.52-38,562.42-12,391.20

Finding the Fourth Proportional to 25,726.52, 38,562.42 and 12,391.20

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Solution

The fourth proportional to 25,726.52, 38,562.42 and 12,391.20 is: 18,573.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,726.52 : 38,562.42 = 12,391.20 : x
  2. Step 2: Convert to fraction form
    25,726.52/38,562.42 = 12,391.20/x
  3. Step 3: Cross multiply
    25,726.52x = 38,562.42 × 12,391.20
  4. Step 4: Simplify right side
    25,726.52x = 477,834,658.70
  5. Step 5: Solve for x
    x = 477,834,658.70/25,726.52
  6. Step 6: Final answer
    x = 18,573.62

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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.