Home / 20,396.94-28,147.30-11,444.23

Finding the Fourth Proportional to 20,396.94, 28,147.30 and 11,444.23

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Solution

The fourth proportional to 20,396.94, 28,147.30 and 11,444.23 is: 15,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.94 : 28,147.30 = 11,444.23 : x
  2. Step 2: Convert to fraction form
    20,396.94/28,147.30 = 11,444.23/x
  3. Step 3: Cross multiply
    20,396.94x = 28,147.30 × 11,444.23
  4. Step 4: Simplify right side
    20,396.94x = 322,124,175.08
  5. Step 5: Solve for x
    x = 322,124,175.08/20,396.94
  6. Step 6: Final answer
    x = 15,792.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.