Home / 19,394.11-29,056.38-11,781.55

Finding the Fourth Proportional to 19,394.11, 29,056.38 and 11,781.55

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Solution

The fourth proportional to 19,394.11, 29,056.38 and 11,781.55 is: 17,651.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,394.11 : 29,056.38 = 11,781.55 : x
  2. Step 2: Convert to fraction form
    19,394.11/29,056.38 = 11,781.55/x
  3. Step 3: Cross multiply
    19,394.11x = 29,056.38 × 11,781.55
  4. Step 4: Simplify right side
    19,394.11x = 342,329,193.79
  5. Step 5: Solve for x
    x = 342,329,193.79/19,394.11
  6. Step 6: Final answer
    x = 17,651.19

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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.