Home / 21,062.92-31,594.28-5,480.52

Finding the Fourth Proportional to 21,062.92, 31,594.28 and 5,480.52

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Solution

The fourth proportional to 21,062.92, 31,594.28 and 5,480.52 is: 8,220.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.92 : 31,594.28 = 5,480.52 : x
  2. Step 2: Convert to fraction form
    21,062.92/31,594.28 = 5,480.52/x
  3. Step 3: Cross multiply
    21,062.92x = 31,594.28 × 5,480.52
  4. Step 4: Simplify right side
    21,062.92x = 173,153,083.43
  5. Step 5: Solve for x
    x = 173,153,083.43/21,062.92
  6. Step 6: Final answer
    x = 8,220.75

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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.