Home / 20,239.63-30,352.15-8,553.76

Finding the Fourth Proportional to 20,239.63, 30,352.15 and 8,553.76

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Solution

The fourth proportional to 20,239.63, 30,352.15 and 8,553.76 is: 12,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.63 : 30,352.15 = 8,553.76 : x
  2. Step 2: Convert to fraction form
    20,239.63/30,352.15 = 8,553.76/x
  3. Step 3: Cross multiply
    20,239.63x = 30,352.15 × 8,553.76
  4. Step 4: Simplify right side
    20,239.63x = 259,625,006.58
  5. Step 5: Solve for x
    x = 259,625,006.58/20,239.63
  6. Step 6: Final answer
    x = 12,827.56

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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.