Home / 34,165.20-51,247.80-19,419.60

Finding the Fourth Proportional to 34,165.20, 51,247.80 and 19,419.60

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Solution

The fourth proportional to 34,165.20, 51,247.80 and 19,419.60 is: 29,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,165.20 : 51,247.80 = 19,419.60 : x
  2. Step 2: Convert to fraction form
    34,165.20/51,247.80 = 19,419.60/x
  3. Step 3: Cross multiply
    34,165.20x = 51,247.80 × 19,419.60
  4. Step 4: Simplify right side
    34,165.20x = 995,211,776.88
  5. Step 5: Solve for x
    x = 995,211,776.88/34,165.20
  6. Step 6: Final answer
    x = 29,129.40

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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.