Home / 47,722.98-71,584.38-12,659.88

Finding the Fourth Proportional to 47,722.98, 71,584.38 and 12,659.88

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Solution

The fourth proportional to 47,722.98, 71,584.38 and 12,659.88 is: 18,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,722.98 : 71,584.38 = 12,659.88 : x
  2. Step 2: Convert to fraction form
    47,722.98/71,584.38 = 12,659.88/x
  3. Step 3: Cross multiply
    47,722.98x = 71,584.38 × 12,659.88
  4. Step 4: Simplify right side
    47,722.98x = 906,249,660.67
  5. Step 5: Solve for x
    x = 906,249,660.67/47,722.98
  6. Step 6: Final answer
    x = 18,989.80

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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.