Home / 40,019.88-55,230.76-22,118.38

Finding the Fourth Proportional to 40,019.88, 55,230.76 and 22,118.38

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Solution

The fourth proportional to 40,019.88, 55,230.76 and 22,118.38 is: 30,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,019.88 : 55,230.76 = 22,118.38 : x
  2. Step 2: Convert to fraction form
    40,019.88/55,230.76 = 22,118.38/x
  3. Step 3: Cross multiply
    40,019.88x = 55,230.76 × 22,118.38
  4. Step 4: Simplify right side
    40,019.88x = 1,221,614,937.37
  5. Step 5: Solve for x
    x = 1,221,614,937.37/40,019.88
  6. Step 6: Final answer
    x = 30,525.20

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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.