Home / 20,436.30-28,202.85-11,937.24

Finding the Fourth Proportional to 20,436.30, 28,202.85 and 11,937.24

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Solution

The fourth proportional to 20,436.30, 28,202.85 and 11,937.24 is: 16,473.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436.30 : 28,202.85 = 11,937.24 : x
  2. Step 2: Convert to fraction form
    20,436.30/28,202.85 = 11,937.24/x
  3. Step 3: Cross multiply
    20,436.30x = 28,202.85 × 11,937.24
  4. Step 4: Simplify right side
    20,436.30x = 336,664,189.13
  5. Step 5: Solve for x
    x = 336,664,189.13/20,436.30
  6. Step 6: Final answer
    x = 16,473.83

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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.