Home / 38,879.78-58,309.94-11,177.78

Finding the Fourth Proportional to 38,879.78, 58,309.94 and 11,177.78

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Solution

The fourth proportional to 38,879.78, 58,309.94 and 11,177.78 is: 16,763.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,879.78 : 58,309.94 = 11,177.78 : x
  2. Step 2: Convert to fraction form
    38,879.78/58,309.94 = 11,177.78/x
  3. Step 3: Cross multiply
    38,879.78x = 58,309.94 × 11,177.78
  4. Step 4: Simplify right side
    38,879.78x = 651,775,681.13
  5. Step 5: Solve for x
    x = 651,775,681.13/38,879.78
  6. Step 6: Final answer
    x = 16,763.87

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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.