Home / 20,184.90-30,265.20-10,343.40

Finding the Fourth Proportional to 20,184.90, 30,265.20 and 10,343.40

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Solution

The fourth proportional to 20,184.90, 30,265.20 and 10,343.40 is: 15,508.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.90 : 30,265.20 = 10,343.40 : x
  2. Step 2: Convert to fraction form
    20,184.90/30,265.20 = 10,343.40/x
  3. Step 3: Cross multiply
    20,184.90x = 30,265.20 × 10,343.40
  4. Step 4: Simplify right side
    20,184.90x = 313,045,069.68
  5. Step 5: Solve for x
    x = 313,045,069.68/20,184.90
  6. Step 6: Final answer
    x = 15,508.87

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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.