Home / 21,043.11-29,040.10-11,612.28

Finding the Fourth Proportional to 21,043.11, 29,040.10 and 11,612.28

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Solution

The fourth proportional to 21,043.11, 29,040.10 and 11,612.28 is: 16,025.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.11 : 29,040.10 = 11,612.28 : x
  2. Step 2: Convert to fraction form
    21,043.11/29,040.10 = 11,612.28/x
  3. Step 3: Cross multiply
    21,043.11x = 29,040.10 × 11,612.28
  4. Step 4: Simplify right side
    21,043.11x = 337,221,772.43
  5. Step 5: Solve for x
    x = 337,221,772.43/21,043.11
  6. Step 6: Final answer
    x = 16,025.28

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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.