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Finding the Fourth Proportional to 25,695.70, 38,543.55 and 7,225.30

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Solution

The fourth proportional to 25,695.70, 38,543.55 and 7,225.30 is: 10,837.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,695.70 : 38,543.55 = 7,225.30 : x
  2. Step 2: Convert to fraction form
    25,695.70/38,543.55 = 7,225.30/x
  3. Step 3: Cross multiply
    25,695.70x = 38,543.55 × 7,225.30
  4. Step 4: Simplify right side
    25,695.70x = 278,488,711.82
  5. Step 5: Solve for x
    x = 278,488,711.82/25,695.70
  6. Step 6: Final answer
    x = 10,837.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.