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Finding the Fourth Proportional to 21,963.62, 32,948.64 and 6,379.22

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Solution

The fourth proportional to 21,963.62, 32,948.64 and 6,379.22 is: 9,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.62 : 32,948.64 = 6,379.22 : x
  2. Step 2: Convert to fraction form
    21,963.62/32,948.64 = 6,379.22/x
  3. Step 3: Cross multiply
    21,963.62x = 32,948.64 × 6,379.22
  4. Step 4: Simplify right side
    21,963.62x = 210,186,623.26
  5. Step 5: Solve for x
    x = 210,186,623.26/21,963.62
  6. Step 6: Final answer
    x = 9,569.76

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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.