Home / 39,868.20-55,008.18-25,704

Finding the Fourth Proportional to 39,868.20, 55,008.18 and 25,704

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Solution

The fourth proportional to 39,868.20, 55,008.18 and 25,704 is: 35,465.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,868.20 : 55,008.18 = 25,704 : x
  2. Step 2: Convert to fraction form
    39,868.20/55,008.18 = 25,704/x
  3. Step 3: Cross multiply
    39,868.20x = 55,008.18 × 25,704
  4. Step 4: Simplify right side
    39,868.20x = 1,413,930,258.72
  5. Step 5: Solve for x
    x = 1,413,930,258.72/39,868.20
  6. Step 6: Final answer
    x = 35,465.11

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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.