Home / 19,805.40-27,328.86-11,844.72

Finding the Fourth Proportional to 19,805.40, 27,328.86 and 11,844.72

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Solution

The fourth proportional to 19,805.40, 27,328.86 and 11,844.72 is: 16,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.40 : 27,328.86 = 11,844.72 : x
  2. Step 2: Convert to fraction form
    19,805.40/27,328.86 = 11,844.72/x
  3. Step 3: Cross multiply
    19,805.40x = 27,328.86 × 11,844.72
  4. Step 4: Simplify right side
    19,805.40x = 323,702,694.62
  5. Step 5: Solve for x
    x = 323,702,694.62/19,805.40
  6. Step 6: Final answer
    x = 16,344.16

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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.