Home / 20,022.72-27,631.14-11,070

Finding the Fourth Proportional to 20,022.72, 27,631.14 and 11,070

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Solution

The fourth proportional to 20,022.72, 27,631.14 and 11,070 is: 15,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.72 : 27,631.14 = 11,070 : x
  2. Step 2: Convert to fraction form
    20,022.72/27,631.14 = 11,070/x
  3. Step 3: Cross multiply
    20,022.72x = 27,631.14 × 11,070
  4. Step 4: Simplify right side
    20,022.72x = 305,876,719.80
  5. Step 5: Solve for x
    x = 305,876,719.80/20,022.72
  6. Step 6: Final answer
    x = 15,276.48

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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.