Home / 21,081.36-29,092.08-11,649.84

Finding the Fourth Proportional to 21,081.36, 29,092.08 and 11,649.84

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Solution

The fourth proportional to 21,081.36, 29,092.08 and 11,649.84 is: 16,076.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.36 : 29,092.08 = 11,649.84 : x
  2. Step 2: Convert to fraction form
    21,081.36/29,092.08 = 11,649.84/x
  3. Step 3: Cross multiply
    21,081.36x = 29,092.08 × 11,649.84
  4. Step 4: Simplify right side
    21,081.36x = 338,918,077.27
  5. Step 5: Solve for x
    x = 338,918,077.27/21,081.36
  6. Step 6: Final answer
    x = 16,076.67

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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.