Home / 27,911.88-38,516.16-15,972.48

Finding the Fourth Proportional to 27,911.88, 38,516.16 and 15,972.48

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Solution

The fourth proportional to 27,911.88, 38,516.16 and 15,972.48 is: 22,040.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.88 : 38,516.16 = 15,972.48 : x
  2. Step 2: Convert to fraction form
    27,911.88/38,516.16 = 15,972.48/x
  3. Step 3: Cross multiply
    27,911.88x = 38,516.16 × 15,972.48
  4. Step 4: Simplify right side
    27,911.88x = 615,198,595.28
  5. Step 5: Solve for x
    x = 615,198,595.28/27,911.88
  6. Step 6: Final answer
    x = 22,040.74

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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.