Home / 20,113.84-30,175.10-6,788.18

Finding the Fourth Proportional to 20,113.84, 30,175.10 and 6,788.18

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Solution

The fourth proportional to 20,113.84, 30,175.10 and 6,788.18 is: 10,183.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.84 : 30,175.10 = 6,788.18 : x
  2. Step 2: Convert to fraction form
    20,113.84/30,175.10 = 6,788.18/x
  3. Step 3: Cross multiply
    20,113.84x = 30,175.10 × 6,788.18
  4. Step 4: Simplify right side
    20,113.84x = 204,834,010.32
  5. Step 5: Solve for x
    x = 204,834,010.32/20,113.84
  6. Step 6: Final answer
    x = 10,183.73

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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.