Home / 21,264.78-29,345.85-11,833.95

Finding the Fourth Proportional to 21,264.78, 29,345.85 and 11,833.95

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Solution

The fourth proportional to 21,264.78, 29,345.85 and 11,833.95 is: 16,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.78 : 29,345.85 = 11,833.95 : x
  2. Step 2: Convert to fraction form
    21,264.78/29,345.85 = 11,833.95/x
  3. Step 3: Cross multiply
    21,264.78x = 29,345.85 × 11,833.95
  4. Step 4: Simplify right side
    21,264.78x = 347,277,321.61
  5. Step 5: Solve for x
    x = 347,277,321.61/21,264.78
  6. Step 6: Final answer
    x = 16,331.10

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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.