Home / 20,158.47-30,229.92-6,646.39

Finding the Fourth Proportional to 20,158.47, 30,229.92 and 6,646.39

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Solution

The fourth proportional to 20,158.47, 30,229.92 and 6,646.39 is: 9,967.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.47 : 30,229.92 = 6,646.39 : x
  2. Step 2: Convert to fraction form
    20,158.47/30,229.92 = 6,646.39/x
  3. Step 3: Cross multiply
    20,158.47x = 30,229.92 × 6,646.39
  4. Step 4: Simplify right side
    20,158.47x = 200,919,837.99
  5. Step 5: Solve for x
    x = 200,919,837.99/20,158.47
  6. Step 6: Final answer
    x = 9,967.02

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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.