Home / 21,016.80-29,001.78-12,063.06

Finding the Fourth Proportional to 21,016.80, 29,001.78 and 12,063.06

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Solution

The fourth proportional to 21,016.80, 29,001.78 and 12,063.06 is: 16,646.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.80 : 29,001.78 = 12,063.06 : x
  2. Step 2: Convert to fraction form
    21,016.80/29,001.78 = 12,063.06/x
  3. Step 3: Cross multiply
    21,016.80x = 29,001.78 × 12,063.06
  4. Step 4: Simplify right side
    21,016.80x = 349,850,212.25
  5. Step 5: Solve for x
    x = 349,850,212.25/21,016.80
  6. Step 6: Final answer
    x = 16,646.22

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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.