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Finding the Fourth Proportional to 19,405.17, 29,113.02 and 8,881.92

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Solution

The fourth proportional to 19,405.17, 29,113.02 and 8,881.92 is: 13,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.17 : 29,113.02 = 8,881.92 : x
  2. Step 2: Convert to fraction form
    19,405.17/29,113.02 = 8,881.92/x
  3. Step 3: Cross multiply
    19,405.17x = 29,113.02 × 8,881.92
  4. Step 4: Simplify right side
    19,405.17x = 258,579,514.60
  5. Step 5: Solve for x
    x = 258,579,514.60/19,405.17
  6. Step 6: Final answer
    x = 13,325.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.