Home / 31,675.45-47,418.52-19,157.61

Finding the Fourth Proportional to 31,675.45, 47,418.52 and 19,157.61

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Solution

The fourth proportional to 31,675.45, 47,418.52 and 19,157.61 is: 28,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,675.45 : 47,418.52 = 19,157.61 : x
  2. Step 2: Convert to fraction form
    31,675.45/47,418.52 = 19,157.61/x
  3. Step 3: Cross multiply
    31,675.45x = 47,418.52 × 19,157.61
  4. Step 4: Simplify right side
    31,675.45x = 908,425,512.94
  5. Step 5: Solve for x
    x = 908,425,512.94/31,675.45
  6. Step 6: Final answer
    x = 28,679.17

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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.