Home / 20,591.20-30,886.43-5,008.96

Finding the Fourth Proportional to 20,591.20, 30,886.43 and 5,008.96

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Solution

The fourth proportional to 20,591.20, 30,886.43 and 5,008.96 is: 7,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.20 : 30,886.43 = 5,008.96 : x
  2. Step 2: Convert to fraction form
    20,591.20/30,886.43 = 5,008.96/x
  3. Step 3: Cross multiply
    20,591.20x = 30,886.43 × 5,008.96
  4. Step 4: Simplify right side
    20,591.20x = 154,708,737.98
  5. Step 5: Solve for x
    x = 154,708,737.98/20,591.20
  6. Step 6: Final answer
    x = 7,513.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.