Home / 31,778.83-47,668.21-12,057.36

Finding the Fourth Proportional to 31,778.83, 47,668.21 and 12,057.36

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Solution

The fourth proportional to 31,778.83, 47,668.21 and 12,057.36 is: 18,086.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.83 : 47,668.21 = 12,057.36 : x
  2. Step 2: Convert to fraction form
    31,778.83/47,668.21 = 12,057.36/x
  3. Step 3: Cross multiply
    31,778.83x = 47,668.21 × 12,057.36
  4. Step 4: Simplify right side
    31,778.83x = 574,752,559.63
  5. Step 5: Solve for x
    x = 574,752,559.63/31,778.83
  6. Step 6: Final answer
    x = 18,086.02

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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.