Home / 19,856.82-27,402.87-11,359.74

Finding the Fourth Proportional to 19,856.82, 27,402.87 and 11,359.74

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Solution

The fourth proportional to 19,856.82, 27,402.87 and 11,359.74 is: 15,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.82 : 27,402.87 = 11,359.74 : x
  2. Step 2: Convert to fraction form
    19,856.82/27,402.87 = 11,359.74/x
  3. Step 3: Cross multiply
    19,856.82x = 27,402.87 × 11,359.74
  4. Step 4: Simplify right side
    19,856.82x = 311,289,478.45
  5. Step 5: Solve for x
    x = 311,289,478.45/19,856.82
  6. Step 6: Final answer
    x = 15,676.70

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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.