Home / 34,149.60-51,221.52-19,311.84

Finding the Fourth Proportional to 34,149.60, 51,221.52 and 19,311.84

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Solution

The fourth proportional to 34,149.60, 51,221.52 and 19,311.84 is: 28,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,149.60 : 51,221.52 = 19,311.84 : x
  2. Step 2: Convert to fraction form
    34,149.60/51,221.52 = 19,311.84/x
  3. Step 3: Cross multiply
    34,149.60x = 51,221.52 × 19,311.84
  4. Step 4: Simplify right side
    34,149.60x = 989,181,798.80
  5. Step 5: Solve for x
    x = 989,181,798.80/34,149.60
  6. Step 6: Final answer
    x = 28,966.13

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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.