Home / 19,905.30-29,854.31-8,058.44

Finding the Fourth Proportional to 19,905.30, 29,854.31 and 8,058.44

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Solution

The fourth proportional to 19,905.30, 29,854.31 and 8,058.44 is: 12,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.30 : 29,854.31 = 8,058.44 : x
  2. Step 2: Convert to fraction form
    19,905.30/29,854.31 = 8,058.44/x
  3. Step 3: Cross multiply
    19,905.30x = 29,854.31 × 8,058.44
  4. Step 4: Simplify right side
    19,905.30x = 240,579,200.22
  5. Step 5: Solve for x
    x = 240,579,200.22/19,905.30
  6. Step 6: Final answer
    x = 12,086.19

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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.