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Finding the Fourth Proportional to 25,492.72, 38,228.28 and 9,899.68

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Solution

The fourth proportional to 25,492.72, 38,228.28 and 9,899.68 is: 14,845.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,492.72 : 38,228.28 = 9,899.68 : x
  2. Step 2: Convert to fraction form
    25,492.72/38,228.28 = 9,899.68/x
  3. Step 3: Cross multiply
    25,492.72x = 38,228.28 × 9,899.68
  4. Step 4: Simplify right side
    25,492.72x = 378,447,738.95
  5. Step 5: Solve for x
    x = 378,447,738.95/25,492.72
  6. Step 6: Final answer
    x = 14,845.33

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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.