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Finding the Fourth Proportional to 25,672.10, 35,427.20 and 15,059.70

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Solution

The fourth proportional to 25,672.10, 35,427.20 and 15,059.70 is: 20,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,672.10 : 35,427.20 = 15,059.70 : x
  2. Step 2: Convert to fraction form
    25,672.10/35,427.20 = 15,059.70/x
  3. Step 3: Cross multiply
    25,672.10x = 35,427.20 × 15,059.70
  4. Step 4: Simplify right side
    25,672.10x = 533,523,003.84
  5. Step 5: Solve for x
    x = 533,523,003.84/25,672.10
  6. Step 6: Final answer
    x = 20,782.21

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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.