Home / 69,028.59-103,542.99-20,997.62

Finding the Fourth Proportional to 69,028.59, 103,542.99 and 20,997.62

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Solution

The fourth proportional to 69,028.59, 103,542.99 and 20,997.62 is: 31,496.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,028.59 : 103,542.99 = 20,997.62 : x
  2. Step 2: Convert to fraction form
    69,028.59/103,542.99 = 20,997.62/x
  3. Step 3: Cross multiply
    69,028.59x = 103,542.99 × 20,997.62
  4. Step 4: Simplify right side
    69,028.59x = 2,174,156,357.68
  5. Step 5: Solve for x
    x = 2,174,156,357.68/69,028.59
  6. Step 6: Final answer
    x = 31,496.46

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Double scale
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Similar ratio
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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.