Home / 19,904.87-27,436.84-15,109.19

Finding the Fourth Proportional to 19,904.87, 27,436.84 and 15,109.19

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Solution

The fourth proportional to 19,904.87, 27,436.84 and 15,109.19 is: 20,826.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904.87 : 27,436.84 = 15,109.19 : x
  2. Step 2: Convert to fraction form
    19,904.87/27,436.84 = 15,109.19/x
  3. Step 3: Cross multiply
    19,904.87x = 27,436.84 × 15,109.19
  4. Step 4: Simplify right side
    19,904.87x = 414,548,428.56
  5. Step 5: Solve for x
    x = 414,548,428.56/19,904.87
  6. Step 6: Final answer
    x = 20,826.48

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Double scale
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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.