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Finding the Fourth Proportional to 21,755.58, 32,645.68 and 9,274.30

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Solution

The fourth proportional to 21,755.58, 32,645.68 and 9,274.30 is: 13,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,755.58 : 32,645.68 = 9,274.30 : x
  2. Step 2: Convert to fraction form
    21,755.58/32,645.68 = 9,274.30/x
  3. Step 3: Cross multiply
    21,755.58x = 32,645.68 × 9,274.30
  4. Step 4: Simplify right side
    21,755.58x = 302,765,830.02
  5. Step 5: Solve for x
    x = 302,765,830.02/21,755.58
  6. Step 6: Final answer
    x = 13,916.70

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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.