Home / 31,885.11-47,827.11-11,108.07

Finding the Fourth Proportional to 31,885.11, 47,827.11 and 11,108.07

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Solution

The fourth proportional to 31,885.11, 47,827.11 and 11,108.07 is: 16,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,885.11 : 47,827.11 = 11,108.07 : x
  2. Step 2: Convert to fraction form
    31,885.11/47,827.11 = 11,108.07/x
  3. Step 3: Cross multiply
    31,885.11x = 47,827.11 × 11,108.07
  4. Step 4: Simplify right side
    31,885.11x = 531,266,885.78
  5. Step 5: Solve for x
    x = 531,266,885.78/31,885.11
  6. Step 6: Final answer
    x = 16,661.91

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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.