Home / 20,031.05-27,641.75-11,077.97

Finding the Fourth Proportional to 20,031.05, 27,641.75 and 11,077.97

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Solution

The fourth proportional to 20,031.05, 27,641.75 and 11,077.97 is: 15,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.05 : 27,641.75 = 11,077.97 : x
  2. Step 2: Convert to fraction form
    20,031.05/27,641.75 = 11,077.97/x
  3. Step 3: Cross multiply
    20,031.05x = 27,641.75 × 11,077.97
  4. Step 4: Simplify right side
    20,031.05x = 306,214,283.65
  5. Step 5: Solve for x
    x = 306,214,283.65/20,031.05
  6. Step 6: Final answer
    x = 15,286.98

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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.