Home / 22,290.91-30,753.58-12,723.90

Finding the Fourth Proportional to 22,290.91, 30,753.58 and 12,723.90

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Solution

The fourth proportional to 22,290.91, 30,753.58 and 12,723.90 is: 17,554.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290.91 : 30,753.58 = 12,723.90 : x
  2. Step 2: Convert to fraction form
    22,290.91/30,753.58 = 12,723.90/x
  3. Step 3: Cross multiply
    22,290.91x = 30,753.58 × 12,723.90
  4. Step 4: Simplify right side
    22,290.91x = 391,305,365.22
  5. Step 5: Solve for x
    x = 391,305,365.22/22,290.91
  6. Step 6: Final answer
    x = 17,554.48

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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.