Home / 39,726.87-54,778.15-25,367.82

Finding the Fourth Proportional to 39,726.87, 54,778.15 and 25,367.82

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Solution

The fourth proportional to 39,726.87, 54,778.15 and 25,367.82 is: 34,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,726.87 : 54,778.15 = 25,367.82 : x
  2. Step 2: Convert to fraction form
    39,726.87/54,778.15 = 25,367.82/x
  3. Step 3: Cross multiply
    39,726.87x = 54,778.15 × 25,367.82
  4. Step 4: Simplify right side
    39,726.87x = 1,389,601,911.82
  5. Step 5: Solve for x
    x = 1,389,601,911.82/39,726.87
  6. Step 6: Final answer
    x = 34,978.90

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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.