Home / 20,251.50-27,944.10-11,298.30

Finding the Fourth Proportional to 20,251.50, 27,944.10 and 11,298.30

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Solution

The fourth proportional to 20,251.50, 27,944.10 and 11,298.30 is: 15,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.50 : 27,944.10 = 11,298.30 : x
  2. Step 2: Convert to fraction form
    20,251.50/27,944.10 = 11,298.30/x
  3. Step 3: Cross multiply
    20,251.50x = 27,944.10 × 11,298.30
  4. Step 4: Simplify right side
    20,251.50x = 315,720,825.03
  5. Step 5: Solve for x
    x = 315,720,825.03/20,251.50
  6. Step 6: Final answer
    x = 15,590.00

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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.