Home / 47,812.62-65,963.78-28,942.86

Finding the Fourth Proportional to 47,812.62, 65,963.78 and 28,942.86

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Solution

The fourth proportional to 47,812.62, 65,963.78 and 28,942.86 is: 39,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,812.62 : 65,963.78 = 28,942.86 : x
  2. Step 2: Convert to fraction form
    47,812.62/65,963.78 = 28,942.86/x
  3. Step 3: Cross multiply
    47,812.62x = 65,963.78 × 28,942.86
  4. Step 4: Simplify right side
    47,812.62x = 1,909,180,449.61
  5. Step 5: Solve for x
    x = 1,909,180,449.61/47,812.62
  6. Step 6: Final answer
    x = 39,930.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.