Home / 16,679.40-23,032.88-10,721.44

Finding the Fourth Proportional to 16,679.40, 23,032.88 and 10,721.44

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Solution

The fourth proportional to 16,679.40, 23,032.88 and 10,721.44 is: 14,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.40 : 23,032.88 = 10,721.44 : x
  2. Step 2: Convert to fraction form
    16,679.40/23,032.88 = 10,721.44/x
  3. Step 3: Cross multiply
    16,679.40x = 23,032.88 × 10,721.44
  4. Step 4: Simplify right side
    16,679.40x = 246,945,640.95
  5. Step 5: Solve for x
    x = 246,945,640.95/16,679.40
  6. Step 6: Final answer
    x = 14,805.43

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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.