Home / 20,371.52-30,557.28-12,583.04

Finding the Fourth Proportional to 20,371.52, 30,557.28 and 12,583.04

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Solution

The fourth proportional to 20,371.52, 30,557.28 and 12,583.04 is: 18,874.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.52 : 30,557.28 = 12,583.04 : x
  2. Step 2: Convert to fraction form
    20,371.52/30,557.28 = 12,583.04/x
  3. Step 3: Cross multiply
    20,371.52x = 30,557.28 × 12,583.04
  4. Step 4: Simplify right side
    20,371.52x = 384,503,476.53
  5. Step 5: Solve for x
    x = 384,503,476.53/20,371.52
  6. Step 6: Final answer
    x = 18,874.56

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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.