Home / 20,199.57-30,298.20-8,348.19

Finding the Fourth Proportional to 20,199.57, 30,298.20 and 8,348.19

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Solution

The fourth proportional to 20,199.57, 30,298.20 and 8,348.19 is: 12,521.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.57 : 30,298.20 = 8,348.19 : x
  2. Step 2: Convert to fraction form
    20,199.57/30,298.20 = 8,348.19/x
  3. Step 3: Cross multiply
    20,199.57x = 30,298.20 × 8,348.19
  4. Step 4: Simplify right side
    20,199.57x = 252,935,130.26
  5. Step 5: Solve for x
    x = 252,935,130.26/20,199.57
  6. Step 6: Final answer
    x = 12,521.81

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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.