Home / 31,600.97-47,400.62-12,880.92

Finding the Fourth Proportional to 31,600.97, 47,400.62 and 12,880.92

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Solution

The fourth proportional to 31,600.97, 47,400.62 and 12,880.92 is: 19,321.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,600.97 : 47,400.62 = 12,880.92 : x
  2. Step 2: Convert to fraction form
    31,600.97/47,400.62 = 12,880.92/x
  3. Step 3: Cross multiply
    31,600.97x = 47,400.62 × 12,880.92
  4. Step 4: Simplify right side
    31,600.97x = 610,563,594.17
  5. Step 5: Solve for x
    x = 610,563,594.17/31,600.97
  6. Step 6: Final answer
    x = 19,321.04

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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.