Home / 38,010.78-57,016.20-10,308.78

Finding the Fourth Proportional to 38,010.78, 57,016.20 and 10,308.78

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Solution

The fourth proportional to 38,010.78, 57,016.20 and 10,308.78 is: 15,463.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,010.78 : 57,016.20 = 10,308.78 : x
  2. Step 2: Convert to fraction form
    38,010.78/57,016.20 = 10,308.78/x
  3. Step 3: Cross multiply
    38,010.78x = 57,016.20 × 10,308.78
  4. Step 4: Simplify right side
    38,010.78x = 587,767,462.24
  5. Step 5: Solve for x
    x = 587,767,462.24/38,010.78
  6. Step 6: Final answer
    x = 15,463.18

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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.