Home / 48,406.46-72,638.13-20,324.36

Finding the Fourth Proportional to 48,406.46, 72,638.13 and 20,324.36

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Solution

The fourth proportional to 48,406.46, 72,638.13 and 20,324.36 is: 30,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,406.46 : 72,638.13 = 20,324.36 : x
  2. Step 2: Convert to fraction form
    48,406.46/72,638.13 = 20,324.36/x
  3. Step 3: Cross multiply
    48,406.46x = 72,638.13 × 20,324.36
  4. Step 4: Simplify right side
    48,406.46x = 1,476,323,140.66
  5. Step 5: Solve for x
    x = 1,476,323,140.66/48,406.46
  6. Step 6: Final answer
    x = 30,498.47

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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.