Home / 20,463.36-28,219.52-15,737.60

Finding the Fourth Proportional to 20,463.36, 28,219.52 and 15,737.60

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Solution

The fourth proportional to 20,463.36, 28,219.52 and 15,737.60 is: 21,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.36 : 28,219.52 = 15,737.60 : x
  2. Step 2: Convert to fraction form
    20,463.36/28,219.52 = 15,737.60/x
  3. Step 3: Cross multiply
    20,463.36x = 28,219.52 × 15,737.60
  4. Step 4: Simplify right side
    20,463.36x = 444,107,517.95
  5. Step 5: Solve for x
    x = 444,107,517.95/20,463.36
  6. Step 6: Final answer
    x = 21,702.57

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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.