Home / 21,076.77-29,086.52-11,645.94

Finding the Fourth Proportional to 21,076.77, 29,086.52 and 11,645.94

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Solution

The fourth proportional to 21,076.77, 29,086.52 and 11,645.94 is: 16,071.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.77 : 29,086.52 = 11,645.94 : x
  2. Step 2: Convert to fraction form
    21,076.77/29,086.52 = 11,645.94/x
  3. Step 3: Cross multiply
    21,076.77x = 29,086.52 × 11,645.94
  4. Step 4: Simplify right side
    21,076.77x = 338,739,750.41
  5. Step 5: Solve for x
    x = 338,739,750.41/21,076.77
  6. Step 6: Final answer
    x = 16,071.71

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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.