Home / 20,046.72-29,906.88-19,531.20

Finding the Fourth Proportional to 20,046.72, 29,906.88 and 19,531.20

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Solution

The fourth proportional to 20,046.72, 29,906.88 and 19,531.20 is: 29,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,046.72 : 29,906.88 = 19,531.20 : x
  2. Step 2: Convert to fraction form
    20,046.72/29,906.88 = 19,531.20/x
  3. Step 3: Cross multiply
    20,046.72x = 29,906.88 × 19,531.20
  4. Step 4: Simplify right side
    20,046.72x = 584,117,254.66
  5. Step 5: Solve for x
    x = 584,117,254.66/20,046.72
  6. Step 6: Final answer
    x = 29,137.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.