Home / 20,230.14-30,344.85-7,746.78

Finding the Fourth Proportional to 20,230.14, 30,344.85 and 7,746.78

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Solution

The fourth proportional to 20,230.14, 30,344.85 and 7,746.78 is: 11,620.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.14 : 30,344.85 = 7,746.78 : x
  2. Step 2: Convert to fraction form
    20,230.14/30,344.85 = 7,746.78/x
  3. Step 3: Cross multiply
    20,230.14x = 30,344.85 × 7,746.78
  4. Step 4: Simplify right side
    20,230.14x = 235,074,877.08
  5. Step 5: Solve for x
    x = 235,074,877.08/20,230.14
  6. Step 6: Final answer
    x = 11,620.03

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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.