Home / 41,979.25-57,912.63-28,362.90

Finding the Fourth Proportional to 41,979.25, 57,912.63 and 28,362.90

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Solution

The fourth proportional to 41,979.25, 57,912.63 and 28,362.90 is: 39,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,979.25 : 57,912.63 = 28,362.90 : x
  2. Step 2: Convert to fraction form
    41,979.25/57,912.63 = 28,362.90/x
  3. Step 3: Cross multiply
    41,979.25x = 57,912.63 × 28,362.90
  4. Step 4: Simplify right side
    41,979.25x = 1,642,569,991.61
  5. Step 5: Solve for x
    x = 1,642,569,991.61/41,979.25
  6. Step 6: Final answer
    x = 39,128.14

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1.5x scale

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.