Home / 30,114.38-41,534.42-20,561.94

Finding the Fourth Proportional to 30,114.38, 41,534.42 and 20,561.94

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Solution

The fourth proportional to 30,114.38, 41,534.42 and 20,561.94 is: 28,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,114.38 : 41,534.42 = 20,561.94 : x
  2. Step 2: Convert to fraction form
    30,114.38/41,534.42 = 20,561.94/x
  3. Step 3: Cross multiply
    30,114.38x = 41,534.42 × 20,561.94
  4. Step 4: Simplify right side
    30,114.38x = 854,028,251.97
  5. Step 5: Solve for x
    x = 854,028,251.97/30,114.38
  6. Step 6: Final answer
    x = 28,359.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.