Home / 31,849.16-47,794.55-12,127.91

Finding the Fourth Proportional to 31,849.16, 47,794.55 and 12,127.91

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Solution

The fourth proportional to 31,849.16, 47,794.55 and 12,127.91 is: 18,199.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,849.16 : 47,794.55 = 12,127.91 : x
  2. Step 2: Convert to fraction form
    31,849.16/47,794.55 = 12,127.91/x
  3. Step 3: Cross multiply
    31,849.16x = 47,794.55 × 12,127.91
  4. Step 4: Simplify right side
    31,849.16x = 579,647,701.28
  5. Step 5: Solve for x
    x = 579,647,701.28/31,849.16
  6. Step 6: Final answer
    x = 18,199.78

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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.