Home / 21,454.89-29,607.25-11,894.73

Finding the Fourth Proportional to 21,454.89, 29,607.25 and 11,894.73

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Solution

The fourth proportional to 21,454.89, 29,607.25 and 11,894.73 is: 16,414.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.89 : 29,607.25 = 11,894.73 : x
  2. Step 2: Convert to fraction form
    21,454.89/29,607.25 = 11,894.73/x
  3. Step 3: Cross multiply
    21,454.89x = 29,607.25 × 11,894.73
  4. Step 4: Simplify right side
    21,454.89x = 352,170,244.79
  5. Step 5: Solve for x
    x = 352,170,244.79/21,454.89
  6. Step 6: Final answer
    x = 16,414.45

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Double scale
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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.