Home / 19,390.68-29,086.20-5,351.49

Finding the Fourth Proportional to 19,390.68, 29,086.20 and 5,351.49

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Solution

The fourth proportional to 19,390.68, 29,086.20 and 5,351.49 is: 8,027.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.68 : 29,086.20 = 5,351.49 : x
  2. Step 2: Convert to fraction form
    19,390.68/29,086.20 = 5,351.49/x
  3. Step 3: Cross multiply
    19,390.68x = 29,086.20 × 5,351.49
  4. Step 4: Simplify right side
    19,390.68x = 155,654,508.44
  5. Step 5: Solve for x
    x = 155,654,508.44/19,390.68
  6. Step 6: Final answer
    x = 8,027.28

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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.