Home / 19,945.14-27,514.18-15,221.22

Finding the Fourth Proportional to 19,945.14, 27,514.18 and 15,221.22

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Solution

The fourth proportional to 19,945.14, 27,514.18 and 15,221.22 is: 20,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.14 : 27,514.18 = 15,221.22 : x
  2. Step 2: Convert to fraction form
    19,945.14/27,514.18 = 15,221.22/x
  3. Step 3: Cross multiply
    19,945.14x = 27,514.18 × 15,221.22
  4. Step 4: Simplify right side
    19,945.14x = 418,799,386.90
  5. Step 5: Solve for x
    x = 418,799,386.90/19,945.14
  6. Step 6: Final answer
    x = 20,997.57

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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.