Home / 19,816.20-29,765.34-19,151.91

Finding the Fourth Proportional to 19,816.20, 29,765.34 and 19,151.91

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Solution

The fourth proportional to 19,816.20, 29,765.34 and 19,151.91 is: 28,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.20 : 29,765.34 = 19,151.91 : x
  2. Step 2: Convert to fraction form
    19,816.20/29,765.34 = 19,151.91/x
  3. Step 3: Cross multiply
    19,816.20x = 29,765.34 × 19,151.91
  4. Step 4: Simplify right side
    19,816.20x = 570,063,112.80
  5. Step 5: Solve for x
    x = 570,063,112.80/19,816.20
  6. Step 6: Final answer
    x = 28,767.53

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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.