Home / 19,540.43-29,310.65-4,749.25

Finding the Fourth Proportional to 19,540.43, 29,310.65 and 4,749.25

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Solution

The fourth proportional to 19,540.43, 29,310.65 and 4,749.25 is: 7,123.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.43 : 29,310.65 = 4,749.25 : x
  2. Step 2: Convert to fraction form
    19,540.43/29,310.65 = 4,749.25/x
  3. Step 3: Cross multiply
    19,540.43x = 29,310.65 × 4,749.25
  4. Step 4: Simplify right side
    19,540.43x = 139,203,543.11
  5. Step 5: Solve for x
    x = 139,203,543.11/19,540.43
  6. Step 6: Final answer
    x = 7,123.87

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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.