Home / 21,749.85-32,619.87-10,645.29

Finding the Fourth Proportional to 21,749.85, 32,619.87 and 10,645.29

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Solution

The fourth proportional to 21,749.85, 32,619.87 and 10,645.29 is: 15,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.85 : 32,619.87 = 10,645.29 : x
  2. Step 2: Convert to fraction form
    21,749.85/32,619.87 = 10,645.29/x
  3. Step 3: Cross multiply
    21,749.85x = 32,619.87 × 10,645.29
  4. Step 4: Simplify right side
    21,749.85x = 347,247,975.91
  5. Step 5: Solve for x
    x = 347,247,975.91/21,749.85
  6. Step 6: Final answer
    x = 15,965.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.