Home / 20,197.35-30,281.45-8,504.19

Finding the Fourth Proportional to 20,197.35, 30,281.45 and 8,504.19

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Solution

The fourth proportional to 20,197.35, 30,281.45 and 8,504.19 is: 12,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.35 : 30,281.45 = 8,504.19 : x
  2. Step 2: Convert to fraction form
    20,197.35/30,281.45 = 8,504.19/x
  3. Step 3: Cross multiply
    20,197.35x = 30,281.45 × 8,504.19
  4. Step 4: Simplify right side
    20,197.35x = 257,519,161.75
  5. Step 5: Solve for x
    x = 257,519,161.75/20,197.35
  6. Step 6: Final answer
    x = 12,750.15

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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.