Home / 36,195.40-54,289.68-12,820.60

Finding the Fourth Proportional to 36,195.40, 54,289.68 and 12,820.60

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Solution

The fourth proportional to 36,195.40, 54,289.68 and 12,820.60 is: 19,229.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,195.40 : 54,289.68 = 12,820.60 : x
  2. Step 2: Convert to fraction form
    36,195.40/54,289.68 = 12,820.60/x
  3. Step 3: Cross multiply
    36,195.40x = 54,289.68 × 12,820.60
  4. Step 4: Simplify right side
    36,195.40x = 696,026,271.41
  5. Step 5: Solve for x
    x = 696,026,271.41/36,195.40
  6. Step 6: Final answer
    x = 19,229.69

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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.