Home / 21,292.05-29,383.94-11,860.62

Finding the Fourth Proportional to 21,292.05, 29,383.94 and 11,860.62

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Solution

The fourth proportional to 21,292.05, 29,383.94 and 11,860.62 is: 16,368.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.05 : 29,383.94 = 11,860.62 : x
  2. Step 2: Convert to fraction form
    21,292.05/29,383.94 = 11,860.62/x
  3. Step 3: Cross multiply
    21,292.05x = 29,383.94 × 11,860.62
  4. Step 4: Simplify right side
    21,292.05x = 348,511,746.44
  5. Step 5: Solve for x
    x = 348,511,746.44/21,292.05
  6. Step 6: Final answer
    x = 16,368.16

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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.