Home / 19,517.40-26,928.54-12,801.96

Finding the Fourth Proportional to 19,517.40, 26,928.54 and 12,801.96

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Solution

The fourth proportional to 19,517.40, 26,928.54 and 12,801.96 is: 17,663.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.40 : 26,928.54 = 12,801.96 : x
  2. Step 2: Convert to fraction form
    19,517.40/26,928.54 = 12,801.96/x
  3. Step 3: Cross multiply
    19,517.40x = 26,928.54 × 12,801.96
  4. Step 4: Simplify right side
    19,517.40x = 344,738,091.94
  5. Step 5: Solve for x
    x = 344,738,091.94/19,517.40
  6. Step 6: Final answer
    x = 17,663.12

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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.