Home / 25,517.81-38,287.19-11,278.76

Finding the Fourth Proportional to 25,517.81, 38,287.19 and 11,278.76

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Solution

The fourth proportional to 25,517.81, 38,287.19 and 11,278.76 is: 16,922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,517.81 : 38,287.19 = 11,278.76 : x
  2. Step 2: Convert to fraction form
    25,517.81/38,287.19 = 11,278.76/x
  3. Step 3: Cross multiply
    25,517.81x = 38,287.19 × 11,278.76
  4. Step 4: Simplify right side
    25,517.81x = 431,832,015.77
  5. Step 5: Solve for x
    x = 431,832,015.77/25,517.81
  6. Step 6: Final answer
    x = 16,922.77

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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.