Home / 19,452.87-29,179.32-5,412.89

Finding the Fourth Proportional to 19,452.87, 29,179.32 and 5,412.89

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Solution

The fourth proportional to 19,452.87, 29,179.32 and 5,412.89 is: 8,119.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,452.87 : 29,179.32 = 5,412.89 : x
  2. Step 2: Convert to fraction form
    19,452.87/29,179.32 = 5,412.89/x
  3. Step 3: Cross multiply
    19,452.87x = 29,179.32 × 5,412.89
  4. Step 4: Simplify right side
    19,452.87x = 157,944,449.43
  5. Step 5: Solve for x
    x = 157,944,449.43/19,452.87
  6. Step 6: Final answer
    x = 8,119.34

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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.