Home / 21,665.30-29,894.73-12,233.66

Finding the Fourth Proportional to 21,665.30, 29,894.73 and 12,233.66

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Solution

The fourth proportional to 21,665.30, 29,894.73 and 12,233.66 is: 16,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,665.30 : 29,894.73 = 12,233.66 : x
  2. Step 2: Convert to fraction form
    21,665.30/29,894.73 = 12,233.66/x
  3. Step 3: Cross multiply
    21,665.30x = 29,894.73 × 12,233.66
  4. Step 4: Simplify right side
    21,665.30x = 365,721,813.14
  5. Step 5: Solve for x
    x = 365,721,813.14/21,665.30
  6. Step 6: Final answer
    x = 16,880.54

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1.5x scale

Why These Related Problems?

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