Home / 26,622.90-39,934.35-12,578.31

Finding the Fourth Proportional to 26,622.90, 39,934.35 and 12,578.31

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Solution

The fourth proportional to 26,622.90, 39,934.35 and 12,578.31 is: 18,867.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,622.90 : 39,934.35 = 12,578.31 : x
  2. Step 2: Convert to fraction form
    26,622.90/39,934.35 = 12,578.31/x
  3. Step 3: Cross multiply
    26,622.90x = 39,934.35 × 12,578.31
  4. Step 4: Simplify right side
    26,622.90x = 502,306,633.95
  5. Step 5: Solve for x
    x = 502,306,633.95/26,622.90
  6. Step 6: Final answer
    x = 18,867.47

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.