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Finding the Fourth Proportional to 25,671.84, 35,427.72 and 15,069.12

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Solution

The fourth proportional to 25,671.84, 35,427.72 and 15,069.12 is: 20,795.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,671.84 : 35,427.72 = 15,069.12 : x
  2. Step 2: Convert to fraction form
    25,671.84/35,427.72 = 15,069.12/x
  3. Step 3: Cross multiply
    25,671.84x = 35,427.72 × 15,069.12
  4. Step 4: Simplify right side
    25,671.84x = 533,864,564.01
  5. Step 5: Solve for x
    x = 533,864,564.01/25,671.84
  6. Step 6: Final answer
    x = 20,795.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.