Home / 20,043.41-27,672.51-12,876.23

Finding the Fourth Proportional to 20,043.41, 27,672.51 and 12,876.23

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Solution

The fourth proportional to 20,043.41, 27,672.51 and 12,876.23 is: 17,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.41 : 27,672.51 = 12,876.23 : x
  2. Step 2: Convert to fraction form
    20,043.41/27,672.51 = 12,876.23/x
  3. Step 3: Cross multiply
    20,043.41x = 27,672.51 × 12,876.23
  4. Step 4: Simplify right side
    20,043.41x = 356,317,603.44
  5. Step 5: Solve for x
    x = 356,317,603.44/20,043.41
  6. Step 6: Final answer
    x = 17,777.29

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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.