Home / 35,979.87-49,649.26-20,867.70

Finding the Fourth Proportional to 35,979.87, 49,649.26 and 20,867.70

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Solution

The fourth proportional to 35,979.87, 49,649.26 and 20,867.70 is: 28,795.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,979.87 : 49,649.26 = 20,867.70 : x
  2. Step 2: Convert to fraction form
    35,979.87/49,649.26 = 20,867.70/x
  3. Step 3: Cross multiply
    35,979.87x = 49,649.26 × 20,867.70
  4. Step 4: Simplify right side
    35,979.87x = 1,036,065,862.90
  5. Step 5: Solve for x
    x = 1,036,065,862.90/35,979.87
  6. Step 6: Final answer
    x = 28,795.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.