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Finding the Fourth Proportional to 21,890.82, 32,841.63 and 6,308.31

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Solution

The fourth proportional to 21,890.82, 32,841.63 and 6,308.31 is: 9,464.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.82 : 32,841.63 = 6,308.31 : x
  2. Step 2: Convert to fraction form
    21,890.82/32,841.63 = 6,308.31/x
  3. Step 3: Cross multiply
    21,890.82x = 32,841.63 × 6,308.31
  4. Step 4: Simplify right side
    21,890.82x = 207,175,182.95
  5. Step 5: Solve for x
    x = 207,175,182.95/21,890.82
  6. Step 6: Final answer
    x = 9,464.02

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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.