Home / 21,083.10-31,653.45-10,702.14

Finding the Fourth Proportional to 21,083.10, 31,653.45 and 10,702.14

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Solution

The fourth proportional to 21,083.10, 31,653.45 and 10,702.14 is: 16,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.10 : 31,653.45 = 10,702.14 : x
  2. Step 2: Convert to fraction form
    21,083.10/31,653.45 = 10,702.14/x
  3. Step 3: Cross multiply
    21,083.10x = 31,653.45 × 10,702.14
  4. Step 4: Simplify right side
    21,083.10x = 338,759,653.38
  5. Step 5: Solve for x
    x = 338,759,653.38/21,083.10
  6. Step 6: Final answer
    x = 16,067.83

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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.