Home / 31,623.40-47,435.10-11,906.38

Finding the Fourth Proportional to 31,623.40, 47,435.10 and 11,906.38

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Solution

The fourth proportional to 31,623.40, 47,435.10 and 11,906.38 is: 17,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,623.40 : 47,435.10 = 11,906.38 : x
  2. Step 2: Convert to fraction form
    31,623.40/47,435.10 = 11,906.38/x
  3. Step 3: Cross multiply
    31,623.40x = 47,435.10 × 11,906.38
  4. Step 4: Simplify right side
    31,623.40x = 564,780,325.94
  5. Step 5: Solve for x
    x = 564,780,325.94/31,623.40
  6. Step 6: Final answer
    x = 17,859.57

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1.5x scale

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.