Home / 21,076.14-29,085.66-11,645.31

Finding the Fourth Proportional to 21,076.14, 29,085.66 and 11,645.31

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Solution

The fourth proportional to 21,076.14, 29,085.66 and 11,645.31 is: 16,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.14 : 29,085.66 = 11,645.31 : x
  2. Step 2: Convert to fraction form
    21,076.14/29,085.66 = 11,645.31/x
  3. Step 3: Cross multiply
    21,076.14x = 29,085.66 × 11,645.31
  4. Step 4: Simplify right side
    21,076.14x = 338,711,527.25
  5. Step 5: Solve for x
    x = 338,711,527.25/21,076.14
  6. Step 6: Final answer
    x = 16,070.85

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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.