Home / 21,066.44-31,572.22-8,571.88

Finding the Fourth Proportional to 21,066.44, 31,572.22 and 8,571.88

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Solution

The fourth proportional to 21,066.44, 31,572.22 and 8,571.88 is: 12,846.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.44 : 31,572.22 = 8,571.88 : x
  2. Step 2: Convert to fraction form
    21,066.44/31,572.22 = 8,571.88/x
  3. Step 3: Cross multiply
    21,066.44x = 31,572.22 × 8,571.88
  4. Step 4: Simplify right side
    21,066.44x = 270,633,281.17
  5. Step 5: Solve for x
    x = 270,633,281.17/21,066.44
  6. Step 6: Final answer
    x = 12,846.65

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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.