Home / 40,143.12-55,395.84-22,238.88

Finding the Fourth Proportional to 40,143.12, 55,395.84 and 22,238.88

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Solution

The fourth proportional to 40,143.12, 55,395.84 and 22,238.88 is: 30,688.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,143.12 : 55,395.84 = 22,238.88 : x
  2. Step 2: Convert to fraction form
    40,143.12/55,395.84 = 22,238.88/x
  3. Step 3: Cross multiply
    40,143.12x = 55,395.84 × 22,238.88
  4. Step 4: Simplify right side
    40,143.12x = 1,231,941,438.26
  5. Step 5: Solve for x
    x = 1,231,941,438.26/40,143.12
  6. Step 6: Final answer
    x = 30,688.73

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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.