Home / 21,016.06-29,001.81-11,456.05

Finding the Fourth Proportional to 21,016.06, 29,001.81 and 11,456.05

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Solution

The fourth proportional to 21,016.06, 29,001.81 and 11,456.05 is: 15,809.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.06 : 29,001.81 = 11,456.05 : x
  2. Step 2: Convert to fraction form
    21,016.06/29,001.81 = 11,456.05/x
  3. Step 3: Cross multiply
    21,016.06x = 29,001.81 × 11,456.05
  4. Step 4: Simplify right side
    21,016.06x = 332,246,185.45
  5. Step 5: Solve for x
    x = 332,246,185.45/21,016.06
  6. Step 6: Final answer
    x = 15,809.16

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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.