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Finding the Fourth Proportional to 19,347.30, 29,021 and 8,246.91

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Solution

The fourth proportional to 19,347.30, 29,021 and 8,246.91 is: 12,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.30 : 29,021 = 8,246.91 : x
  2. Step 2: Convert to fraction form
    19,347.30/29,021 = 8,246.91/x
  3. Step 3: Cross multiply
    19,347.30x = 29,021 × 8,246.91
  4. Step 4: Simplify right side
    19,347.30x = 239,333,575.11
  5. Step 5: Solve for x
    x = 239,333,575.11/19,347.30
  6. Step 6: Final answer
    x = 12,370.39

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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.