Home / 21,039.44-29,036.98-12,086.92

Finding the Fourth Proportional to 21,039.44, 29,036.98 and 12,086.92

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Solution

The fourth proportional to 21,039.44, 29,036.98 and 12,086.92 is: 16,681.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.44 : 29,036.98 = 12,086.92 : x
  2. Step 2: Convert to fraction form
    21,039.44/29,036.98 = 12,086.92/x
  3. Step 3: Cross multiply
    21,039.44x = 29,036.98 × 12,086.92
  4. Step 4: Simplify right side
    21,039.44x = 350,967,654.30
  5. Step 5: Solve for x
    x = 350,967,654.30/21,039.44
  6. Step 6: Final answer
    x = 16,681.42

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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.