Home / 31,786.74-47,658.24-18,467.91

Finding the Fourth Proportional to 31,786.74, 47,658.24 and 18,467.91

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Solution

The fourth proportional to 31,786.74, 47,658.24 and 18,467.91 is: 27,689.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.74 : 47,658.24 = 18,467.91 : x
  2. Step 2: Convert to fraction form
    31,786.74/47,658.24 = 18,467.91/x
  3. Step 3: Cross multiply
    31,786.74x = 47,658.24 × 18,467.91
  4. Step 4: Simplify right side
    31,786.74x = 880,148,087.08
  5. Step 5: Solve for x
    x = 880,148,087.08/31,786.74
  6. Step 6: Final answer
    x = 27,689.16

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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.