Home / 20,072.40-27,691.02-14,107.97

Finding the Fourth Proportional to 20,072.40, 27,691.02 and 14,107.97

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Solution

The fourth proportional to 20,072.40, 27,691.02 and 14,107.97 is: 19,462.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.40 : 27,691.02 = 14,107.97 : x
  2. Step 2: Convert to fraction form
    20,072.40/27,691.02 = 14,107.97/x
  3. Step 3: Cross multiply
    20,072.40x = 27,691.02 × 14,107.97
  4. Step 4: Simplify right side
    20,072.40x = 390,663,940.97
  5. Step 5: Solve for x
    x = 390,663,940.97/20,072.40
  6. Step 6: Final answer
    x = 19,462.74

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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.