Home / 27,778.27-38,334.12-15,031.46

Finding the Fourth Proportional to 27,778.27, 38,334.12 and 15,031.46

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Solution

The fourth proportional to 27,778.27, 38,334.12 and 15,031.46 is: 20,743.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.27 : 38,334.12 = 15,031.46 : x
  2. Step 2: Convert to fraction form
    27,778.27/38,334.12 = 15,031.46/x
  3. Step 3: Cross multiply
    27,778.27x = 38,334.12 × 15,031.46
  4. Step 4: Simplify right side
    27,778.27x = 576,217,641.28
  5. Step 5: Solve for x
    x = 576,217,641.28/27,778.27
  6. Step 6: Final answer
    x = 20,743.46

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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.