Home / 19,861.35-27,408.83-10,908.96

Finding the Fourth Proportional to 19,861.35, 27,408.83 and 10,908.96

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Solution

The fourth proportional to 19,861.35, 27,408.83 and 10,908.96 is: 15,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.35 : 27,408.83 = 10,908.96 : x
  2. Step 2: Convert to fraction form
    19,861.35/27,408.83 = 10,908.96/x
  3. Step 3: Cross multiply
    19,861.35x = 27,408.83 × 10,908.96
  4. Step 4: Simplify right side
    19,861.35x = 299,001,775.57
  5. Step 5: Solve for x
    x = 299,001,775.57/19,861.35
  6. Step 6: Final answer
    x = 15,054.45

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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.