Home / 19,945.44-29,918.16-8,251.20

Finding the Fourth Proportional to 19,945.44, 29,918.16 and 8,251.20

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Solution

The fourth proportional to 19,945.44, 29,918.16 and 8,251.20 is: 12,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.44 : 29,918.16 = 8,251.20 : x
  2. Step 2: Convert to fraction form
    19,945.44/29,918.16 = 8,251.20/x
  3. Step 3: Cross multiply
    19,945.44x = 29,918.16 × 8,251.20
  4. Step 4: Simplify right side
    19,945.44x = 246,860,721.79
  5. Step 5: Solve for x
    x = 246,860,721.79/19,945.44
  6. Step 6: Final answer
    x = 12,376.80

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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.