Home / 27,921.29-38,531.51-15,346.85

Finding the Fourth Proportional to 27,921.29, 38,531.51 and 15,346.85

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Solution

The fourth proportional to 27,921.29, 38,531.51 and 15,346.85 is: 21,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.29 : 38,531.51 = 15,346.85 : x
  2. Step 2: Convert to fraction form
    27,921.29/38,531.51 = 15,346.85/x
  3. Step 3: Cross multiply
    27,921.29x = 38,531.51 × 15,346.85
  4. Step 4: Simplify right side
    27,921.29x = 591,337,304.24
  5. Step 5: Solve for x
    x = 591,337,304.24/27,921.29
  6. Step 6: Final answer
    x = 21,178.72

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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.