Home / 39,949.92-55,131.07-22,045.45

Finding the Fourth Proportional to 39,949.92, 55,131.07 and 22,045.45

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Solution

The fourth proportional to 39,949.92, 55,131.07 and 22,045.45 is: 30,422.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,949.92 : 55,131.07 = 22,045.45 : x
  2. Step 2: Convert to fraction form
    39,949.92/55,131.07 = 22,045.45/x
  3. Step 3: Cross multiply
    39,949.92x = 55,131.07 × 22,045.45
  4. Step 4: Simplify right side
    39,949.92x = 1,215,389,247.13
  5. Step 5: Solve for x
    x = 1,215,389,247.13/39,949.92
  6. Step 6: Final answer
    x = 30,422.82

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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.