Home / 19,728.97-27,217.01-11,657.12

Finding the Fourth Proportional to 19,728.97, 27,217.01 and 11,657.12

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Solution

The fourth proportional to 19,728.97, 27,217.01 and 11,657.12 is: 16,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.97 : 27,217.01 = 11,657.12 : x
  2. Step 2: Convert to fraction form
    19,728.97/27,217.01 = 11,657.12/x
  3. Step 3: Cross multiply
    19,728.97x = 27,217.01 × 11,657.12
  4. Step 4: Simplify right side
    19,728.97x = 317,271,844.67
  5. Step 5: Solve for x
    x = 317,271,844.67/19,728.97
  6. Step 6: Final answer
    x = 16,081.52

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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.