Home / 40,220.15-55,510.44-22,320.92

Finding the Fourth Proportional to 40,220.15, 55,510.44 and 22,320.92

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Solution

The fourth proportional to 40,220.15, 55,510.44 and 22,320.92 is: 30,806.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,220.15 : 55,510.44 = 22,320.92 : x
  2. Step 2: Convert to fraction form
    40,220.15/55,510.44 = 22,320.92/x
  3. Step 3: Cross multiply
    40,220.15x = 55,510.44 × 22,320.92
  4. Step 4: Simplify right side
    40,220.15x = 1,239,043,812.85
  5. Step 5: Solve for x
    x = 1,239,043,812.85/40,220.15
  6. Step 6: Final answer
    x = 30,806.55

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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.