Home / 20,753.08-28,635.76-19,702.24

Finding the Fourth Proportional to 20,753.08, 28,635.76 and 19,702.24

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Solution

The fourth proportional to 20,753.08, 28,635.76 and 19,702.24 is: 27,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.08 : 28,635.76 = 19,702.24 : x
  2. Step 2: Convert to fraction form
    20,753.08/28,635.76 = 19,702.24/x
  3. Step 3: Cross multiply
    20,753.08x = 28,635.76 × 19,702.24
  4. Step 4: Simplify right side
    20,753.08x = 564,188,616.10
  5. Step 5: Solve for x
    x = 564,188,616.10/20,753.08
  6. Step 6: Final answer
    x = 27,185.78

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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.