Home / 20,241.57-30,371.13-10,870.66

Finding the Fourth Proportional to 20,241.57, 30,371.13 and 10,870.66

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Solution

The fourth proportional to 20,241.57, 30,371.13 and 10,870.66 is: 16,310.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.57 : 30,371.13 = 10,870.66 : x
  2. Step 2: Convert to fraction form
    20,241.57/30,371.13 = 10,870.66/x
  3. Step 3: Cross multiply
    20,241.57x = 30,371.13 × 10,870.66
  4. Step 4: Simplify right side
    20,241.57x = 330,154,064.60
  5. Step 5: Solve for x
    x = 330,154,064.60/20,241.57
  6. Step 6: Final answer
    x = 16,310.69

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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.