Home / 20,551.88-30,827.82-8,707.52

Finding the Fourth Proportional to 20,551.88, 30,827.82 and 8,707.52

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Solution

The fourth proportional to 20,551.88, 30,827.82 and 8,707.52 is: 13,061.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.88 : 30,827.82 = 8,707.52 : x
  2. Step 2: Convert to fraction form
    20,551.88/30,827.82 = 8,707.52/x
  3. Step 3: Cross multiply
    20,551.88x = 30,827.82 × 8,707.52
  4. Step 4: Simplify right side
    20,551.88x = 268,433,859.21
  5. Step 5: Solve for x
    x = 268,433,859.21/20,551.88
  6. Step 6: Final answer
    x = 13,061.28

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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.