Home / 20,635.38-30,939.35-10,646.24

Finding the Fourth Proportional to 20,635.38, 30,939.35 and 10,646.24

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Solution

The fourth proportional to 20,635.38, 30,939.35 and 10,646.24 is: 15,962.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.38 : 30,939.35 = 10,646.24 : x
  2. Step 2: Convert to fraction form
    20,635.38/30,939.35 = 10,646.24/x
  3. Step 3: Cross multiply
    20,635.38x = 30,939.35 × 10,646.24
  4. Step 4: Simplify right side
    20,635.38x = 329,387,537.62
  5. Step 5: Solve for x
    x = 329,387,537.62/20,635.38
  6. Step 6: Final answer
    x = 15,962.27

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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.