Home / 20,436.32-28,202.10-11,944.28

Finding the Fourth Proportional to 20,436.32, 28,202.10 and 11,944.28

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Solution

The fourth proportional to 20,436.32, 28,202.10 and 11,944.28 is: 16,483.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436.32 : 28,202.10 = 11,944.28 : x
  2. Step 2: Convert to fraction form
    20,436.32/28,202.10 = 11,944.28/x
  3. Step 3: Cross multiply
    20,436.32x = 28,202.10 × 11,944.28
  4. Step 4: Simplify right side
    20,436.32x = 336,853,778.99
  5. Step 5: Solve for x
    x = 336,853,778.99/20,436.32
  6. Step 6: Final answer
    x = 16,483.09

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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.