Home / 47,481.68-71,226.57-12,421.28

Finding the Fourth Proportional to 47,481.68, 71,226.57 and 12,421.28

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Solution

The fourth proportional to 47,481.68, 71,226.57 and 12,421.28 is: 18,632.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,481.68 : 71,226.57 = 12,421.28 : x
  2. Step 2: Convert to fraction form
    47,481.68/71,226.57 = 12,421.28/x
  3. Step 3: Cross multiply
    47,481.68x = 71,226.57 × 12,421.28
  4. Step 4: Simplify right side
    47,481.68x = 884,725,169.41
  5. Step 5: Solve for x
    x = 884,725,169.41/47,481.68
  6. Step 6: Final answer
    x = 18,632.98

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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.