Home / 20,422.00-28,182.15-11,468.87

Finding the Fourth Proportional to 20,422.00, 28,182.15 and 11,468.87

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Solution

The fourth proportional to 20,422.00, 28,182.15 and 11,468.87 is: 15,826.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422.00 : 28,182.15 = 11,468.87 : x
  2. Step 2: Convert to fraction form
    20,422.00/28,182.15 = 11,468.87/x
  3. Step 3: Cross multiply
    20,422.00x = 28,182.15 × 11,468.87
  4. Step 4: Simplify right side
    20,422.00x = 323,217,273.76
  5. Step 5: Solve for x
    x = 323,217,273.76/20,422.00
  6. Step 6: Final answer
    x = 15,826.92

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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.