Home / 21,963.78-30,310.16-12,273.24

Finding the Fourth Proportional to 21,963.78, 30,310.16 and 12,273.24

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Solution

The fourth proportional to 21,963.78, 30,310.16 and 12,273.24 is: 16,937.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.78 : 30,310.16 = 12,273.24 : x
  2. Step 2: Convert to fraction form
    21,963.78/30,310.16 = 12,273.24/x
  3. Step 3: Cross multiply
    21,963.78x = 30,310.16 × 12,273.24
  4. Step 4: Simplify right side
    21,963.78x = 372,003,868.12
  5. Step 5: Solve for x
    x = 372,003,868.12/21,963.78
  6. Step 6: Final answer
    x = 16,937.15

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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.