Home / 20,613.24-30,923.28-6,759

Finding the Fourth Proportional to 20,613.24, 30,923.28 and 6,759

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Solution

The fourth proportional to 20,613.24, 30,923.28 and 6,759 is: 10,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,613.24 : 30,923.28 = 6,759 : x
  2. Step 2: Convert to fraction form
    20,613.24/30,923.28 = 6,759/x
  3. Step 3: Cross multiply
    20,613.24x = 30,923.28 × 6,759
  4. Step 4: Simplify right side
    20,613.24x = 209,010,449.52
  5. Step 5: Solve for x
    x = 209,010,449.52/20,613.24
  6. Step 6: Final answer
    x = 10,139.62

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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.