Home / 19,856.34-27,400.68-11,358.63

Finding the Fourth Proportional to 19,856.34, 27,400.68 and 11,358.63

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Solution

The fourth proportional to 19,856.34, 27,400.68 and 11,358.63 is: 15,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.34 : 27,400.68 = 11,358.63 : x
  2. Step 2: Convert to fraction form
    19,856.34/27,400.68 = 11,358.63/x
  3. Step 3: Cross multiply
    19,856.34x = 27,400.68 × 11,358.63
  4. Step 4: Simplify right side
    19,856.34x = 311,234,185.87
  5. Step 5: Solve for x
    x = 311,234,185.87/19,856.34
  6. Step 6: Final answer
    x = 15,674.30

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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.