Home / 19,980.32-29,937.42-17,919.94

Finding the Fourth Proportional to 19,980.32, 29,937.42 and 17,919.94

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Solution

The fourth proportional to 19,980.32, 29,937.42 and 17,919.94 is: 26,850.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.32 : 29,937.42 = 17,919.94 : x
  2. Step 2: Convert to fraction form
    19,980.32/29,937.42 = 17,919.94/x
  3. Step 3: Cross multiply
    19,980.32x = 29,937.42 × 17,919.94
  4. Step 4: Simplify right side
    19,980.32x = 536,476,770.15
  5. Step 5: Solve for x
    x = 536,476,770.15/19,980.32
  6. Step 6: Final answer
    x = 26,850.26

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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.