Home / 19,856.16-27,401.99-10,781.91

Finding the Fourth Proportional to 19,856.16, 27,401.99 and 10,781.91

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Solution

The fourth proportional to 19,856.16, 27,401.99 and 10,781.91 is: 14,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.16 : 27,401.99 = 10,781.91 : x
  2. Step 2: Convert to fraction form
    19,856.16/27,401.99 = 10,781.91/x
  3. Step 3: Cross multiply
    19,856.16x = 27,401.99 × 10,781.91
  4. Step 4: Simplify right side
    19,856.16x = 295,445,736.09
  5. Step 5: Solve for x
    x = 295,445,736.09/19,856.16
  6. Step 6: Final answer
    x = 14,879.30

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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.