Home / 40,163.08-55,419.78-22,257.20

Finding the Fourth Proportional to 40,163.08, 55,419.78 and 22,257.20

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Solution

The fourth proportional to 40,163.08, 55,419.78 and 22,257.20 is: 30,712.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,163.08 : 55,419.78 = 22,257.20 : x
  2. Step 2: Convert to fraction form
    40,163.08/55,419.78 = 22,257.20/x
  3. Step 3: Cross multiply
    40,163.08x = 55,419.78 × 22,257.20
  4. Step 4: Simplify right side
    40,163.08x = 1,233,489,127.42
  5. Step 5: Solve for x
    x = 1,233,489,127.42/40,163.08
  6. Step 6: Final answer
    x = 30,712.02

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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.