Home / 21,092.72-31,641.54-5,511.56

Finding the Fourth Proportional to 21,092.72, 31,641.54 and 5,511.56

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Solution

The fourth proportional to 21,092.72, 31,641.54 and 5,511.56 is: 8,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.72 : 31,641.54 = 5,511.56 : x
  2. Step 2: Convert to fraction form
    21,092.72/31,641.54 = 5,511.56/x
  3. Step 3: Cross multiply
    21,092.72x = 31,641.54 × 5,511.56
  4. Step 4: Simplify right side
    21,092.72x = 174,394,246.20
  5. Step 5: Solve for x
    x = 174,394,246.20/21,092.72
  6. Step 6: Final answer
    x = 8,267.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.