Home / 19,877.20-29,816.82-5,086.25

Finding the Fourth Proportional to 19,877.20, 29,816.82 and 5,086.25

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Solution

The fourth proportional to 19,877.20, 29,816.82 and 5,086.25 is: 7,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.20 : 29,816.82 = 5,086.25 : x
  2. Step 2: Convert to fraction form
    19,877.20/29,816.82 = 5,086.25/x
  3. Step 3: Cross multiply
    19,877.20x = 29,816.82 × 5,086.25
  4. Step 4: Simplify right side
    19,877.20x = 151,655,800.73
  5. Step 5: Solve for x
    x = 151,655,800.73/19,877.20
  6. Step 6: Final answer
    x = 7,629.64

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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.