Home / 20,793.24-28,712.88-15,159.96

Finding the Fourth Proportional to 20,793.24, 28,712.88 and 15,159.96

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Solution

The fourth proportional to 20,793.24, 28,712.88 and 15,159.96 is: 20,934.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.24 : 28,712.88 = 15,159.96 : x
  2. Step 2: Convert to fraction form
    20,793.24/28,712.88 = 15,159.96/x
  3. Step 3: Cross multiply
    20,793.24x = 28,712.88 × 15,159.96
  4. Step 4: Simplify right side
    20,793.24x = 435,286,112.28
  5. Step 5: Solve for x
    x = 435,286,112.28/20,793.24
  6. Step 6: Final answer
    x = 20,934.02

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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.