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Finding the Fourth Proportional to 25,800, 38,700.48 and 7,332.48

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Solution

The fourth proportional to 25,800, 38,700.48 and 7,332.48 is: 10,998.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,800 : 38,700.48 = 7,332.48 : x
  2. Step 2: Convert to fraction form
    25,800/38,700.48 = 7,332.48/x
  3. Step 3: Cross multiply
    25,800x = 38,700.48 × 7,332.48
  4. Step 4: Simplify right side
    25,800x = 283,770,495.59
  5. Step 5: Solve for x
    x = 283,770,495.59/25,800
  6. Step 6: Final answer
    x = 10,998.86

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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.