Home / 22,042.40-30,418.61-11,970.90

Finding the Fourth Proportional to 22,042.40, 30,418.61 and 11,970.90

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Solution

The fourth proportional to 22,042.40, 30,418.61 and 11,970.90 is: 16,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,042.40 : 30,418.61 = 11,970.90 : x
  2. Step 2: Convert to fraction form
    22,042.40/30,418.61 = 11,970.90/x
  3. Step 3: Cross multiply
    22,042.40x = 30,418.61 × 11,970.90
  4. Step 4: Simplify right side
    22,042.40x = 364,138,078.59
  5. Step 5: Solve for x
    x = 364,138,078.59/22,042.40
  6. Step 6: Final answer
    x = 16,519.90

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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.