Home / 22,010.83-30,374.40-12,578.79

Finding the Fourth Proportional to 22,010.83, 30,374.40 and 12,578.79

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Solution

The fourth proportional to 22,010.83, 30,374.40 and 12,578.79 is: 17,358.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,010.83 : 30,374.40 = 12,578.79 : x
  2. Step 2: Convert to fraction form
    22,010.83/30,374.40 = 12,578.79/x
  3. Step 3: Cross multiply
    22,010.83x = 30,374.40 × 12,578.79
  4. Step 4: Simplify right side
    22,010.83x = 382,073,198.98
  5. Step 5: Solve for x
    x = 382,073,198.98/22,010.83
  6. Step 6: Final answer
    x = 17,358.42

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Half scale
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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.