Home / 21,083.19-31,624.79-5,500.68

Finding the Fourth Proportional to 21,083.19, 31,624.79 and 5,500.68

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Solution

The fourth proportional to 21,083.19, 31,624.79 and 5,500.68 is: 8,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.19 : 31,624.79 = 5,500.68 : x
  2. Step 2: Convert to fraction form
    21,083.19/31,624.79 = 5,500.68/x
  3. Step 3: Cross multiply
    21,083.19x = 31,624.79 × 5,500.68
  4. Step 4: Simplify right side
    21,083.19x = 173,957,822.35
  5. Step 5: Solve for x
    x = 173,957,822.35/21,083.19
  6. Step 6: Final answer
    x = 8,251.02

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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.