Home / 22,679.20-31,296.48-12,608.08

Finding the Fourth Proportional to 22,679.20, 31,296.48 and 12,608.08

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Solution

The fourth proportional to 22,679.20, 31,296.48 and 12,608.08 is: 17,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,679.20 : 31,296.48 = 12,608.08 : x
  2. Step 2: Convert to fraction form
    22,679.20/31,296.48 = 12,608.08/x
  3. Step 3: Cross multiply
    22,679.20x = 31,296.48 × 12,608.08
  4. Step 4: Simplify right side
    22,679.20x = 394,588,523.56
  5. Step 5: Solve for x
    x = 394,588,523.56/22,679.20
  6. Step 6: Final answer
    x = 17,398.70

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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.