Home / 40,039.92-55,257.12-22,135.68

Finding the Fourth Proportional to 40,039.92, 55,257.12 and 22,135.68

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Solution

The fourth proportional to 40,039.92, 55,257.12 and 22,135.68 is: 30,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,039.92 : 55,257.12 = 22,135.68 : x
  2. Step 2: Convert to fraction form
    40,039.92/55,257.12 = 22,135.68/x
  3. Step 3: Cross multiply
    40,039.92x = 55,257.12 × 22,135.68
  4. Step 4: Simplify right side
    40,039.92x = 1,223,153,926.04
  5. Step 5: Solve for x
    x = 1,223,153,926.04/40,039.92
  6. Step 6: Final answer
    x = 30,548.36

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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.