Home / 21,246.04-31,879.77-15,045.90

Finding the Fourth Proportional to 21,246.04, 31,879.77 and 15,045.90

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Solution

The fourth proportional to 21,246.04, 31,879.77 and 15,045.90 is: 22,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.04 : 31,879.77 = 15,045.90 : x
  2. Step 2: Convert to fraction form
    21,246.04/31,879.77 = 15,045.90/x
  3. Step 3: Cross multiply
    21,246.04x = 31,879.77 × 15,045.90
  4. Step 4: Simplify right side
    21,246.04x = 479,659,831.44
  5. Step 5: Solve for x
    x = 479,659,831.44/21,246.04
  6. Step 6: Final answer
    x = 22,576.43

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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.