Home / 27,905.52-38,510.48-15,972.70

Finding the Fourth Proportional to 27,905.52, 38,510.48 and 15,972.70

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Solution

The fourth proportional to 27,905.52, 38,510.48 and 15,972.70 is: 22,042.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.52 : 38,510.48 = 15,972.70 : x
  2. Step 2: Convert to fraction form
    27,905.52/38,510.48 = 15,972.70/x
  3. Step 3: Cross multiply
    27,905.52x = 38,510.48 × 15,972.70
  4. Step 4: Simplify right side
    27,905.52x = 615,116,343.90
  5. Step 5: Solve for x
    x = 615,116,343.90/27,905.52
  6. Step 6: Final answer
    x = 22,042.82

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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.