Home / 39,872.70-55,014.39-25,708.50

Finding the Fourth Proportional to 39,872.70, 55,014.39 and 25,708.50

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Solution

The fourth proportional to 39,872.70, 55,014.39 and 25,708.50 is: 35,471.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872.70 : 55,014.39 = 25,708.50 : x
  2. Step 2: Convert to fraction form
    39,872.70/55,014.39 = 25,708.50/x
  3. Step 3: Cross multiply
    39,872.70x = 55,014.39 × 25,708.50
  4. Step 4: Simplify right side
    39,872.70x = 1,414,337,445.32
  5. Step 5: Solve for x
    x = 1,414,337,445.32/39,872.70
  6. Step 6: Final answer
    x = 35,471.32

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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.