Home / 40,253.29-60,378.31-20,531.41

Finding the Fourth Proportional to 40,253.29, 60,378.31 and 20,531.41

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Solution

The fourth proportional to 40,253.29, 60,378.31 and 20,531.41 is: 30,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,253.29 : 60,378.31 = 20,531.41 : x
  2. Step 2: Convert to fraction form
    40,253.29/60,378.31 = 20,531.41/x
  3. Step 3: Cross multiply
    40,253.29x = 60,378.31 × 20,531.41
  4. Step 4: Simplify right side
    40,253.29x = 1,239,651,837.72
  5. Step 5: Solve for x
    x = 1,239,651,837.72/40,253.29
  6. Step 6: Final answer
    x = 30,796.29

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1.5x scale

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.