Home / 20,267.09-30,403.67-7,117.14

Finding the Fourth Proportional to 20,267.09, 30,403.67 and 7,117.14

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Solution

The fourth proportional to 20,267.09, 30,403.67 and 7,117.14 is: 10,676.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.09 : 30,403.67 = 7,117.14 : x
  2. Step 2: Convert to fraction form
    20,267.09/30,403.67 = 7,117.14/x
  3. Step 3: Cross multiply
    20,267.09x = 30,403.67 × 7,117.14
  4. Step 4: Simplify right side
    20,267.09x = 216,387,175.90
  5. Step 5: Solve for x
    x = 216,387,175.90/20,267.09
  6. Step 6: Final answer
    x = 10,676.78

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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.