Home / 27,079.29-37,371.14-15,142.63

Finding the Fourth Proportional to 27,079.29, 37,371.14 and 15,142.63

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Solution

The fourth proportional to 27,079.29, 37,371.14 and 15,142.63 is: 20,897.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,079.29 : 37,371.14 = 15,142.63 : x
  2. Step 2: Convert to fraction form
    27,079.29/37,371.14 = 15,142.63/x
  3. Step 3: Cross multiply
    27,079.29x = 37,371.14 × 15,142.63
  4. Step 4: Simplify right side
    27,079.29x = 565,897,290.13
  5. Step 5: Solve for x
    x = 565,897,290.13/27,079.29
  6. Step 6: Final answer
    x = 20,897.79

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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.