Home / 22,396.28-30,874.08-15,660.96

Finding the Fourth Proportional to 22,396.28, 30,874.08 and 15,660.96

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Solution

The fourth proportional to 22,396.28, 30,874.08 and 15,660.96 is: 21,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,396.28 : 30,874.08 = 15,660.96 : x
  2. Step 2: Convert to fraction form
    22,396.28/30,874.08 = 15,660.96/x
  3. Step 3: Cross multiply
    22,396.28x = 30,874.08 × 15,660.96
  4. Step 4: Simplify right side
    22,396.28x = 483,517,731.92
  5. Step 5: Solve for x
    x = 483,517,731.92/22,396.28
  6. Step 6: Final answer
    x = 21,589.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.