Home / 31,423.24-47,134.86-19,744.66

Finding the Fourth Proportional to 31,423.24, 47,134.86 and 19,744.66

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Solution

The fourth proportional to 31,423.24, 47,134.86 and 19,744.66 is: 29,616.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423.24 : 47,134.86 = 19,744.66 : x
  2. Step 2: Convert to fraction form
    31,423.24/47,134.86 = 19,744.66/x
  3. Step 3: Cross multiply
    31,423.24x = 47,134.86 × 19,744.66
  4. Step 4: Simplify right side
    31,423.24x = 930,661,784.85
  5. Step 5: Solve for x
    x = 930,661,784.85/31,423.24
  6. Step 6: Final answer
    x = 29,616.99

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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.