Home / 31,381.86-47,072.79-9,195.24

Finding the Fourth Proportional to 31,381.86, 47,072.79 and 9,195.24

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Solution

The fourth proportional to 31,381.86, 47,072.79 and 9,195.24 is: 13,792.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,381.86 : 47,072.79 = 9,195.24 : x
  2. Step 2: Convert to fraction form
    31,381.86/47,072.79 = 9,195.24/x
  3. Step 3: Cross multiply
    31,381.86x = 47,072.79 × 9,195.24
  4. Step 4: Simplify right side
    31,381.86x = 432,845,601.52
  5. Step 5: Solve for x
    x = 432,845,601.52/31,381.86
  6. Step 6: Final answer
    x = 13,792.86

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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.