Home / 27,721.92-38,254.46-15,146.66

Finding the Fourth Proportional to 27,721.92, 38,254.46 and 15,146.66

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Solution

The fourth proportional to 27,721.92, 38,254.46 and 15,146.66 is: 20,901.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.92 : 38,254.46 = 15,146.66 : x
  2. Step 2: Convert to fraction form
    27,721.92/38,254.46 = 15,146.66/x
  3. Step 3: Cross multiply
    27,721.92x = 38,254.46 × 15,146.66
  4. Step 4: Simplify right side
    27,721.92x = 579,427,299.10
  5. Step 5: Solve for x
    x = 579,427,299.10/27,721.92
  6. Step 6: Final answer
    x = 20,901.41

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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.