Home / 20,200.24-27,875.28-11,247.40

Finding the Fourth Proportional to 20,200.24, 27,875.28 and 11,247.40

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Solution

The fourth proportional to 20,200.24, 27,875.28 and 11,247.40 is: 15,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.24 : 27,875.28 = 11,247.40 : x
  2. Step 2: Convert to fraction form
    20,200.24/27,875.28 = 11,247.40/x
  3. Step 3: Cross multiply
    20,200.24x = 27,875.28 × 11,247.40
  4. Step 4: Simplify right side
    20,200.24x = 313,524,424.27
  5. Step 5: Solve for x
    x = 313,524,424.27/20,200.24
  6. Step 6: Final answer
    x = 15,520.83

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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.