Home / 21,874.52-30,212.02-15,932.76

Finding the Fourth Proportional to 21,874.52, 30,212.02 and 15,932.76

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Solution

The fourth proportional to 21,874.52, 30,212.02 and 15,932.76 is: 22,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,874.52 : 30,212.02 = 15,932.76 : x
  2. Step 2: Convert to fraction form
    21,874.52/30,212.02 = 15,932.76/x
  3. Step 3: Cross multiply
    21,874.52x = 30,212.02 × 15,932.76
  4. Step 4: Simplify right side
    21,874.52x = 481,360,863.78
  5. Step 5: Solve for x
    x = 481,360,863.78/21,874.52
  6. Step 6: Final answer
    x = 22,005.55

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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.