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Finding the Fourth Proportional to 25,803.12, 38,711.20 and 7,335.12

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Solution

The fourth proportional to 25,803.12, 38,711.20 and 7,335.12 is: 11,004.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.12 : 38,711.20 = 7,335.12 : x
  2. Step 2: Convert to fraction form
    25,803.12/38,711.20 = 7,335.12/x
  3. Step 3: Cross multiply
    25,803.12x = 38,711.20 × 7,335.12
  4. Step 4: Simplify right side
    25,803.12x = 283,951,297.34
  5. Step 5: Solve for x
    x = 283,951,297.34/25,803.12
  6. Step 6: Final answer
    x = 11,004.53

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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.