Home / 20,182.67-30,270.42-6,139.29

Finding the Fourth Proportional to 20,182.67, 30,270.42 and 6,139.29

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Solution

The fourth proportional to 20,182.67, 30,270.42 and 6,139.29 is: 9,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.67 : 30,270.42 = 6,139.29 : x
  2. Step 2: Convert to fraction form
    20,182.67/30,270.42 = 6,139.29/x
  3. Step 3: Cross multiply
    20,182.67x = 30,270.42 × 6,139.29
  4. Step 4: Simplify right side
    20,182.67x = 185,838,886.80
  5. Step 5: Solve for x
    x = 185,838,886.80/20,182.67
  6. Step 6: Final answer
    x = 9,207.85

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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.