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Finding the Fourth Proportional to 25,695.60, 38,543.52 and 10,900.80

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Solution

The fourth proportional to 25,695.60, 38,543.52 and 10,900.80 is: 16,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,695.60 : 38,543.52 = 10,900.80 : x
  2. Step 2: Convert to fraction form
    25,695.60/38,543.52 = 10,900.80/x
  3. Step 3: Cross multiply
    25,695.60x = 38,543.52 × 10,900.80
  4. Step 4: Simplify right side
    25,695.60x = 420,155,202.82
  5. Step 5: Solve for x
    x = 420,155,202.82/25,695.60
  6. Step 6: Final answer
    x = 16,351.25

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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.