Home / 40,161.12-55,419.84-22,255.08

Finding the Fourth Proportional to 40,161.12, 55,419.84 and 22,255.08

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Solution

The fourth proportional to 40,161.12, 55,419.84 and 22,255.08 is: 30,710.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,161.12 : 55,419.84 = 22,255.08 : x
  2. Step 2: Convert to fraction form
    40,161.12/55,419.84 = 22,255.08/x
  3. Step 3: Cross multiply
    40,161.12x = 55,419.84 × 22,255.08
  4. Step 4: Simplify right side
    40,161.12x = 1,233,372,972.79
  5. Step 5: Solve for x
    x = 1,233,372,972.79/40,161.12
  6. Step 6: Final answer
    x = 30,710.62

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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.