Home / 40,021.60-55,225.04-22,115.52

Finding the Fourth Proportional to 40,021.60, 55,225.04 and 22,115.52

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Solution

The fourth proportional to 40,021.60, 55,225.04 and 22,115.52 is: 30,516.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,021.60 : 55,225.04 = 22,115.52 : x
  2. Step 2: Convert to fraction form
    40,021.60/55,225.04 = 22,115.52/x
  3. Step 3: Cross multiply
    40,021.60x = 55,225.04 × 22,115.52
  4. Step 4: Simplify right side
    40,021.60x = 1,221,330,476.62
  5. Step 5: Solve for x
    x = 1,221,330,476.62/40,021.60
  6. Step 6: Final answer
    x = 30,516.78

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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.