Home / 20,306.13-30,455.69-5,516.24

Finding the Fourth Proportional to 20,306.13, 30,455.69 and 5,516.24

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Solution

The fourth proportional to 20,306.13, 30,455.69 and 5,516.24 is: 8,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.13 : 30,455.69 = 5,516.24 : x
  2. Step 2: Convert to fraction form
    20,306.13/30,455.69 = 5,516.24/x
  3. Step 3: Cross multiply
    20,306.13x = 30,455.69 × 5,516.24
  4. Step 4: Simplify right side
    20,306.13x = 168,000,743.13
  5. Step 5: Solve for x
    x = 168,000,743.13/20,306.13
  6. Step 6: Final answer
    x = 8,273.40

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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.