Home / 21,006.75-31,508.38-6,962.19

Finding the Fourth Proportional to 21,006.75, 31,508.38 and 6,962.19

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Solution

The fourth proportional to 21,006.75, 31,508.38 and 6,962.19 is: 10,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,006.75 : 31,508.38 = 6,962.19 : x
  2. Step 2: Convert to fraction form
    21,006.75/31,508.38 = 6,962.19/x
  3. Step 3: Cross multiply
    21,006.75x = 31,508.38 × 6,962.19
  4. Step 4: Simplify right side
    21,006.75x = 219,367,328.15
  5. Step 5: Solve for x
    x = 219,367,328.15/21,006.75
  6. Step 6: Final answer
    x = 10,442.71

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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.