Home / 20,307.20-30,462.62-5,516.19

Finding the Fourth Proportional to 20,307.20, 30,462.62 and 5,516.19

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Solution

The fourth proportional to 20,307.20, 30,462.62 and 5,516.19 is: 8,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.20 : 30,462.62 = 5,516.19 : x
  2. Step 2: Convert to fraction form
    20,307.20/30,462.62 = 5,516.19/x
  3. Step 3: Cross multiply
    20,307.20x = 30,462.62 × 5,516.19
  4. Step 4: Simplify right side
    20,307.20x = 168,037,572.24
  5. Step 5: Solve for x
    x = 168,037,572.24/20,307.20
  6. Step 6: Final answer
    x = 8,274.78

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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.