Home / 19,972.82-29,977.62-10,118.96

Finding the Fourth Proportional to 19,972.82, 29,977.62 and 10,118.96

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Solution

The fourth proportional to 19,972.82, 29,977.62 and 10,118.96 is: 15,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.82 : 29,977.62 = 10,118.96 : x
  2. Step 2: Convert to fraction form
    19,972.82/29,977.62 = 10,118.96/x
  3. Step 3: Cross multiply
    19,972.82x = 29,977.62 × 10,118.96
  4. Step 4: Simplify right side
    19,972.82x = 303,342,337.68
  5. Step 5: Solve for x
    x = 303,342,337.68/19,972.82
  6. Step 6: Final answer
    x = 15,187.76

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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.