Home / 20,070.14-27,694.53-11,115.38

Finding the Fourth Proportional to 20,070.14, 27,694.53 and 11,115.38

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Solution

The fourth proportional to 20,070.14, 27,694.53 and 11,115.38 is: 15,337.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.14 : 27,694.53 = 11,115.38 : x
  2. Step 2: Convert to fraction form
    20,070.14/27,694.53 = 11,115.38/x
  3. Step 3: Cross multiply
    20,070.14x = 27,694.53 × 11,115.38
  4. Step 4: Simplify right side
    20,070.14x = 307,835,086.40
  5. Step 5: Solve for x
    x = 307,835,086.40/20,070.14
  6. Step 6: Final answer
    x = 15,337.97

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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.