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Finding the Fourth Proportional to 21,934.48, 32,880.84 and 7,132.99

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Solution

The fourth proportional to 21,934.48, 32,880.84 and 7,132.99 is: 10,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.48 : 32,880.84 = 7,132.99 : x
  2. Step 2: Convert to fraction form
    21,934.48/32,880.84 = 7,132.99/x
  3. Step 3: Cross multiply
    21,934.48x = 32,880.84 × 7,132.99
  4. Step 4: Simplify right side
    21,934.48x = 234,538,702.91
  5. Step 5: Solve for x
    x = 234,538,702.91/21,934.48
  6. Step 6: Final answer
    x = 10,692.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.