Home / 21,052.68-31,557.06-8,567.70

Finding the Fourth Proportional to 21,052.68, 31,557.06 and 8,567.70

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Solution

The fourth proportional to 21,052.68, 31,557.06 and 8,567.70 is: 12,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.68 : 31,557.06 = 8,567.70 : x
  2. Step 2: Convert to fraction form
    21,052.68/31,557.06 = 8,567.70/x
  3. Step 3: Cross multiply
    21,052.68x = 31,557.06 × 8,567.70
  4. Step 4: Simplify right side
    21,052.68x = 270,371,422.96
  5. Step 5: Solve for x
    x = 270,371,422.96/21,052.68
  6. Step 6: Final answer
    x = 12,842.61

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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.