Home / 21,134.67-31,703.81-5,552.25

Finding the Fourth Proportional to 21,134.67, 31,703.81 and 5,552.25

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Solution

The fourth proportional to 21,134.67, 31,703.81 and 5,552.25 is: 8,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.67 : 31,703.81 = 5,552.25 : x
  2. Step 2: Convert to fraction form
    21,134.67/31,703.81 = 5,552.25/x
  3. Step 3: Cross multiply
    21,134.67x = 31,703.81 × 5,552.25
  4. Step 4: Simplify right side
    21,134.67x = 176,027,451.31
  5. Step 5: Solve for x
    x = 176,027,451.31/21,134.67
  6. Step 6: Final answer
    x = 8,328.85

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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.