Home / 40,022.39-60,031.41-20,300.43

Finding the Fourth Proportional to 40,022.39, 60,031.41 and 20,300.43

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Solution

The fourth proportional to 40,022.39, 60,031.41 and 20,300.43 is: 30,449.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,022.39 : 60,031.41 = 20,300.43 : x
  2. Step 2: Convert to fraction form
    40,022.39/60,031.41 = 20,300.43/x
  3. Step 3: Cross multiply
    40,022.39x = 60,031.41 × 20,300.43
  4. Step 4: Simplify right side
    40,022.39x = 1,218,663,436.51
  5. Step 5: Solve for x
    x = 1,218,663,436.51/40,022.39
  6. Step 6: Final answer
    x = 30,449.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.