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Finding the Fourth Proportional to 25,139.92, 37,709.86 and 6,419.96

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Solution

The fourth proportional to 25,139.92, 37,709.86 and 6,419.96 is: 9,629.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,139.92 : 37,709.86 = 6,419.96 : x
  2. Step 2: Convert to fraction form
    25,139.92/37,709.86 = 6,419.96/x
  3. Step 3: Cross multiply
    25,139.92x = 37,709.86 × 6,419.96
  4. Step 4: Simplify right side
    25,139.92x = 242,095,792.81
  5. Step 5: Solve for x
    x = 242,095,792.81/25,139.92
  6. Step 6: Final answer
    x = 9,629.93

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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.