Home / 31,170.24-46,720.80-15,553.44

Finding the Fourth Proportional to 31,170.24, 46,720.80 and 15,553.44

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Solution

The fourth proportional to 31,170.24, 46,720.80 and 15,553.44 is: 23,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,170.24 : 46,720.80 = 15,553.44 : x
  2. Step 2: Convert to fraction form
    31,170.24/46,720.80 = 15,553.44/x
  3. Step 3: Cross multiply
    31,170.24x = 46,720.80 × 15,553.44
  4. Step 4: Simplify right side
    31,170.24x = 726,669,159.55
  5. Step 5: Solve for x
    x = 726,669,159.55/31,170.24
  6. Step 6: Final answer
    x = 23,312.92

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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.