Home / 20,132.40-30,198.60-16,851.90

Finding the Fourth Proportional to 20,132.40, 30,198.60 and 16,851.90

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Solution

The fourth proportional to 20,132.40, 30,198.60 and 16,851.90 is: 25,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.40 : 30,198.60 = 16,851.90 : x
  2. Step 2: Convert to fraction form
    20,132.40/30,198.60 = 16,851.90/x
  3. Step 3: Cross multiply
    20,132.40x = 30,198.60 × 16,851.90
  4. Step 4: Simplify right side
    20,132.40x = 508,903,787.34
  5. Step 5: Solve for x
    x = 508,903,787.34/20,132.40
  6. Step 6: Final answer
    x = 25,277.85

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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.