Home / 19,540.23-29,310.21-4,749.18

Finding the Fourth Proportional to 19,540.23, 29,310.21 and 4,749.18

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Solution

The fourth proportional to 19,540.23, 29,310.21 and 4,749.18 is: 7,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.23 : 29,310.21 = 4,749.18 : x
  2. Step 2: Convert to fraction form
    19,540.23/29,310.21 = 4,749.18/x
  3. Step 3: Cross multiply
    19,540.23x = 29,310.21 × 4,749.18
  4. Step 4: Simplify right side
    19,540.23x = 139,199,463.13
  5. Step 5: Solve for x
    x = 139,199,463.13/19,540.23
  6. Step 6: Final answer
    x = 7,123.74

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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.