Home / 21,161.90-29,205.15-11,733.50

Finding the Fourth Proportional to 21,161.90, 29,205.15 and 11,733.50

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Solution

The fourth proportional to 21,161.90, 29,205.15 and 11,733.50 is: 16,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.90 : 29,205.15 = 11,733.50 : x
  2. Step 2: Convert to fraction form
    21,161.90/29,205.15 = 11,733.50/x
  3. Step 3: Cross multiply
    21,161.90x = 29,205.15 × 11,733.50
  4. Step 4: Simplify right side
    21,161.90x = 342,678,627.53
  5. Step 5: Solve for x
    x = 342,678,627.53/21,161.90
  6. Step 6: Final answer
    x = 16,193.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.