Home / 19,540.66-29,310.72-4,749.53

Finding the Fourth Proportional to 19,540.66, 29,310.72 and 4,749.53

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Solution

The fourth proportional to 19,540.66, 29,310.72 and 4,749.53 is: 7,124.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.66 : 29,310.72 = 4,749.53 : x
  2. Step 2: Convert to fraction form
    19,540.66/29,310.72 = 4,749.53/x
  3. Step 3: Cross multiply
    19,540.66x = 29,310.72 × 4,749.53
  4. Step 4: Simplify right side
    19,540.66x = 139,212,143.96
  5. Step 5: Solve for x
    x = 139,212,143.96/19,540.66
  6. Step 6: Final answer
    x = 7,124.23

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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.