Home / 31,915.91-47,857.84-18,593.30

Finding the Fourth Proportional to 31,915.91, 47,857.84 and 18,593.30

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Solution

The fourth proportional to 31,915.91, 47,857.84 and 18,593.30 is: 27,880.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,915.91 : 47,857.84 = 18,593.30 : x
  2. Step 2: Convert to fraction form
    31,915.91/47,857.84 = 18,593.30/x
  3. Step 3: Cross multiply
    31,915.91x = 47,857.84 × 18,593.30
  4. Step 4: Simplify right side
    31,915.91x = 889,835,249.63
  5. Step 5: Solve for x
    x = 889,835,249.63/31,915.91
  6. Step 6: Final answer
    x = 27,880.61

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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.