Home / 19,856.99-27,403.38-10,905.32

Finding the Fourth Proportional to 19,856.99, 27,403.38 and 10,905.32

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Solution

The fourth proportional to 19,856.99, 27,403.38 and 10,905.32 is: 15,049.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.99 : 27,403.38 = 10,905.32 : x
  2. Step 2: Convert to fraction form
    19,856.99/27,403.38 = 10,905.32/x
  3. Step 3: Cross multiply
    19,856.99x = 27,403.38 × 10,905.32
  4. Step 4: Simplify right side
    19,856.99x = 298,842,696.49
  5. Step 5: Solve for x
    x = 298,842,696.49/19,856.99
  6. Step 6: Final answer
    x = 15,049.75

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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.