Home / 20,350.38-28,083.73-11,276.02

Finding the Fourth Proportional to 20,350.38, 28,083.73 and 11,276.02

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Solution

The fourth proportional to 20,350.38, 28,083.73 and 11,276.02 is: 15,561.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,350.38 : 28,083.73 = 11,276.02 : x
  2. Step 2: Convert to fraction form
    20,350.38/28,083.73 = 11,276.02/x
  3. Step 3: Cross multiply
    20,350.38x = 28,083.73 × 11,276.02
  4. Step 4: Simplify right side
    20,350.38x = 316,672,560.74
  5. Step 5: Solve for x
    x = 316,672,560.74/20,350.38
  6. Step 6: Final answer
    x = 15,561.02

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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.