Home / 19,540.08-29,310.12-4,748.90

Finding the Fourth Proportional to 19,540.08, 29,310.12 and 4,748.90

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Solution

The fourth proportional to 19,540.08, 29,310.12 and 4,748.90 is: 7,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.08 : 29,310.12 = 4,748.90 : x
  2. Step 2: Convert to fraction form
    19,540.08/29,310.12 = 4,748.90/x
  3. Step 3: Cross multiply
    19,540.08x = 29,310.12 × 4,748.90
  4. Step 4: Simplify right side
    19,540.08x = 139,190,682.32
  5. Step 5: Solve for x
    x = 139,190,682.32/19,540.08
  6. Step 6: Final answer
    x = 7,123.34

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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.