Home / 31,381.74-47,072.60-9,195.11

Finding the Fourth Proportional to 31,381.74, 47,072.60 and 9,195.11

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Solution

The fourth proportional to 31,381.74, 47,072.60 and 9,195.11 is: 13,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,381.74 : 47,072.60 = 9,195.11 : x
  2. Step 2: Convert to fraction form
    31,381.74/47,072.60 = 9,195.11/x
  3. Step 3: Cross multiply
    31,381.74x = 47,072.60 × 9,195.11
  4. Step 4: Simplify right side
    31,381.74x = 432,837,734.99
  5. Step 5: Solve for x
    x = 432,837,734.99/31,381.74
  6. Step 6: Final answer
    x = 13,792.66

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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.