Home / 38,649.33-57,995.56-20,879.65

Finding the Fourth Proportional to 38,649.33, 57,995.56 and 20,879.65

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Solution

The fourth proportional to 38,649.33, 57,995.56 and 20,879.65 is: 31,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,649.33 : 57,995.56 = 20,879.65 : x
  2. Step 2: Convert to fraction form
    38,649.33/57,995.56 = 20,879.65/x
  3. Step 3: Cross multiply
    38,649.33x = 57,995.56 × 20,879.65
  4. Step 4: Simplify right side
    38,649.33x = 1,210,926,994.35
  5. Step 5: Solve for x
    x = 1,210,926,994.35/38,649.33
  6. Step 6: Final answer
    x = 31,331.13

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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.