Home / 39,278.87-58,909.42-11,198.32

Finding the Fourth Proportional to 39,278.87, 58,909.42 and 11,198.32

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Solution

The fourth proportional to 39,278.87, 58,909.42 and 11,198.32 is: 16,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.87 : 58,909.42 = 11,198.32 : x
  2. Step 2: Convert to fraction form
    39,278.87/58,909.42 = 11,198.32/x
  3. Step 3: Cross multiply
    39,278.87x = 58,909.42 × 11,198.32
  4. Step 4: Simplify right side
    39,278.87x = 659,686,536.17
  5. Step 5: Solve for x
    x = 659,686,536.17/39,278.87
  6. Step 6: Final answer
    x = 16,794.95

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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.