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Finding the Fourth Proportional to 25,280.86, 37,921.31 and 6,812.86

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Solution

The fourth proportional to 25,280.86, 37,921.31 and 6,812.86 is: 10,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,280.86 : 37,921.31 = 6,812.86 : x
  2. Step 2: Convert to fraction form
    25,280.86/37,921.31 = 6,812.86/x
  3. Step 3: Cross multiply
    25,280.86x = 37,921.31 × 6,812.86
  4. Step 4: Simplify right side
    25,280.86x = 258,352,576.05
  5. Step 5: Solve for x
    x = 258,352,576.05/25,280.86
  6. Step 6: Final answer
    x = 10,219.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.