Home / 47,321.22-70,981.84-12,260.88

Finding the Fourth Proportional to 47,321.22, 70,981.84 and 12,260.88

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Solution

The fourth proportional to 47,321.22, 70,981.84 and 12,260.88 is: 18,391.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,321.22 : 70,981.84 = 12,260.88 : x
  2. Step 2: Convert to fraction form
    47,321.22/70,981.84 = 12,260.88/x
  3. Step 3: Cross multiply
    47,321.22x = 70,981.84 × 12,260.88
  4. Step 4: Simplify right side
    47,321.22x = 870,299,822.42
  5. Step 5: Solve for x
    x = 870,299,822.42/47,321.22
  6. Step 6: Final answer
    x = 18,391.32

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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.