Home / 20,354.29-30,536.60-8,506.01

Finding the Fourth Proportional to 20,354.29, 30,536.60 and 8,506.01

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Solution

The fourth proportional to 20,354.29, 30,536.60 and 8,506.01 is: 12,761.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354.29 : 30,536.60 = 8,506.01 : x
  2. Step 2: Convert to fraction form
    20,354.29/30,536.60 = 8,506.01/x
  3. Step 3: Cross multiply
    20,354.29x = 30,536.60 × 8,506.01
  4. Step 4: Simplify right side
    20,354.29x = 259,744,658.78
  5. Step 5: Solve for x
    x = 259,744,658.78/20,354.29
  6. Step 6: Final answer
    x = 12,761.18

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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.