Home / 21,083.88-31,654.98-10,702.92

Finding the Fourth Proportional to 21,083.88, 31,654.98 and 10,702.92

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Solution

The fourth proportional to 21,083.88, 31,654.98 and 10,702.92 is: 16,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.88 : 31,654.98 = 10,702.92 : x
  2. Step 2: Convert to fraction form
    21,083.88/31,654.98 = 10,702.92/x
  3. Step 3: Cross multiply
    21,083.88x = 31,654.98 × 10,702.92
  4. Step 4: Simplify right side
    21,083.88x = 338,800,718.54
  5. Step 5: Solve for x
    x = 338,800,718.54/21,083.88
  6. Step 6: Final answer
    x = 16,069.18

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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.