Home / 27,701.96-38,229.36-15,126.80

Finding the Fourth Proportional to 27,701.96, 38,229.36 and 15,126.80

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Solution

The fourth proportional to 27,701.96, 38,229.36 and 15,126.80 is: 20,875.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,701.96 : 38,229.36 = 15,126.80 : x
  2. Step 2: Convert to fraction form
    27,701.96/38,229.36 = 15,126.80/x
  3. Step 3: Cross multiply
    27,701.96x = 38,229.36 × 15,126.80
  4. Step 4: Simplify right side
    27,701.96x = 578,287,882.85
  5. Step 5: Solve for x
    x = 578,287,882.85/27,701.96
  6. Step 6: Final answer
    x = 20,875.34

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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.