Home / 21,034.02-29,028.51-12,081.90

Finding the Fourth Proportional to 21,034.02, 29,028.51 and 12,081.90

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Solution

The fourth proportional to 21,034.02, 29,028.51 and 12,081.90 is: 16,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.02 : 29,028.51 = 12,081.90 : x
  2. Step 2: Convert to fraction form
    21,034.02/29,028.51 = 12,081.90/x
  3. Step 3: Cross multiply
    21,034.02x = 29,028.51 × 12,081.90
  4. Step 4: Simplify right side
    21,034.02x = 350,719,554.97
  5. Step 5: Solve for x
    x = 350,719,554.97/21,034.02
  6. Step 6: Final answer
    x = 16,673.92

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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.