Home / 20,146.07-30,219.20-6,819.18

Finding the Fourth Proportional to 20,146.07, 30,219.20 and 6,819.18

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Solution

The fourth proportional to 20,146.07, 30,219.20 and 6,819.18 is: 10,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.07 : 30,219.20 = 6,819.18 : x
  2. Step 2: Convert to fraction form
    20,146.07/30,219.20 = 6,819.18/x
  3. Step 3: Cross multiply
    20,146.07x = 30,219.20 × 6,819.18
  4. Step 4: Simplify right side
    20,146.07x = 206,070,130.16
  5. Step 5: Solve for x
    x = 206,070,130.16/20,146.07
  6. Step 6: Final answer
    x = 10,228.80

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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.