Home / 40,324.40-60,436.20-20,610.80

Finding the Fourth Proportional to 40,324.40, 60,436.20 and 20,610.80

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Solution

The fourth proportional to 40,324.40, 60,436.20 and 20,610.80 is: 30,890.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,324.40 : 60,436.20 = 20,610.80 : x
  2. Step 2: Convert to fraction form
    40,324.40/60,436.20 = 20,610.80/x
  3. Step 3: Cross multiply
    40,324.40x = 60,436.20 × 20,610.80
  4. Step 4: Simplify right side
    40,324.40x = 1,245,638,430.96
  5. Step 5: Solve for x
    x = 1,245,638,430.96/40,324.40
  6. Step 6: Final answer
    x = 30,890.44

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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.