Home / 21,754.62-32,618.82-11,880.18

Finding the Fourth Proportional to 21,754.62, 32,618.82 and 11,880.18

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Solution

The fourth proportional to 21,754.62, 32,618.82 and 11,880.18 is: 17,813.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,754.62 : 32,618.82 = 11,880.18 : x
  2. Step 2: Convert to fraction form
    21,754.62/32,618.82 = 11,880.18/x
  3. Step 3: Cross multiply
    21,754.62x = 32,618.82 × 11,880.18
  4. Step 4: Simplify right side
    21,754.62x = 387,517,452.99
  5. Step 5: Solve for x
    x = 387,517,452.99/21,754.62
  6. Step 6: Final answer
    x = 17,813.11

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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.