Home / 20,114.68-30,158.16-8,864.56

Finding the Fourth Proportional to 20,114.68, 30,158.16 and 8,864.56

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Solution

The fourth proportional to 20,114.68, 30,158.16 and 8,864.56 is: 13,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.68 : 30,158.16 = 8,864.56 : x
  2. Step 2: Convert to fraction form
    20,114.68/30,158.16 = 8,864.56/x
  3. Step 3: Cross multiply
    20,114.68x = 30,158.16 × 8,864.56
  4. Step 4: Simplify right side
    20,114.68x = 267,338,818.81
  5. Step 5: Solve for x
    x = 267,338,818.81/20,114.68
  6. Step 6: Final answer
    x = 13,290.73

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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.