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Finding the Fourth Proportional to 25,148.28, 37,722.28 and 6,428.30

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Solution

The fourth proportional to 25,148.28, 37,722.28 and 6,428.30 is: 9,642.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,148.28 : 37,722.28 = 6,428.30 : x
  2. Step 2: Convert to fraction form
    25,148.28/37,722.28 = 6,428.30/x
  3. Step 3: Cross multiply
    25,148.28x = 37,722.28 × 6,428.30
  4. Step 4: Simplify right side
    25,148.28x = 242,489,939.89
  5. Step 5: Solve for x
    x = 242,489,939.89/25,148.28
  6. Step 6: Final answer
    x = 9,642.41

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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.