Home / 39,240-54,151.20-22,474.08

Finding the Fourth Proportional to 39,240, 54,151.20 and 22,474.08

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Solution

The fourth proportional to 39,240, 54,151.20 and 22,474.08 is: 31,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,240 : 54,151.20 = 22,474.08 : x
  2. Step 2: Convert to fraction form
    39,240/54,151.20 = 22,474.08/x
  3. Step 3: Cross multiply
    39,240x = 54,151.20 × 22,474.08
  4. Step 4: Simplify right side
    39,240x = 1,216,998,400.90
  5. Step 5: Solve for x
    x = 1,216,998,400.90/39,240
  6. Step 6: Final answer
    x = 31,014.23

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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.