Home / 40,067.42-55,291.35-22,161.28

Finding the Fourth Proportional to 40,067.42, 55,291.35 and 22,161.28

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Solution

The fourth proportional to 40,067.42, 55,291.35 and 22,161.28 is: 30,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,067.42 : 55,291.35 = 22,161.28 : x
  2. Step 2: Convert to fraction form
    40,067.42/55,291.35 = 22,161.28/x
  3. Step 3: Cross multiply
    40,067.42x = 55,291.35 × 22,161.28
  4. Step 4: Simplify right side
    40,067.42x = 1,225,327,088.93
  5. Step 5: Solve for x
    x = 1,225,327,088.93/40,067.42
  6. Step 6: Final answer
    x = 30,581.63

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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.