Home / 19,917.79-27,487.29-10,965.67

Finding the Fourth Proportional to 19,917.79, 27,487.29 and 10,965.67

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Solution

The fourth proportional to 19,917.79, 27,487.29 and 10,965.67 is: 15,133.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.79 : 27,487.29 = 10,965.67 : x
  2. Step 2: Convert to fraction form
    19,917.79/27,487.29 = 10,965.67/x
  3. Step 3: Cross multiply
    19,917.79x = 27,487.29 × 10,965.67
  4. Step 4: Simplify right side
    19,917.79x = 301,416,551.33
  5. Step 5: Solve for x
    x = 301,416,551.33/19,917.79
  6. Step 6: Final answer
    x = 15,133.03

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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.