Home / 22,058.60-30,441.17-11,987.20

Finding the Fourth Proportional to 22,058.60, 30,441.17 and 11,987.20

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Solution

The fourth proportional to 22,058.60, 30,441.17 and 11,987.20 is: 16,542.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,058.60 : 30,441.17 = 11,987.20 : x
  2. Step 2: Convert to fraction form
    22,058.60/30,441.17 = 11,987.20/x
  3. Step 3: Cross multiply
    22,058.60x = 30,441.17 × 11,987.20
  4. Step 4: Simplify right side
    22,058.60x = 364,904,180.88
  5. Step 5: Solve for x
    x = 364,904,180.88/22,058.60
  6. Step 6: Final answer
    x = 16,542.49

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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.