Home / 31,307.20-46,960.80-18,193.30

Finding the Fourth Proportional to 31,307.20, 46,960.80 and 18,193.30

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Solution

The fourth proportional to 31,307.20, 46,960.80 and 18,193.30 is: 27,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,307.20 : 46,960.80 = 18,193.30 : x
  2. Step 2: Convert to fraction form
    31,307.20/46,960.80 = 18,193.30/x
  3. Step 3: Cross multiply
    31,307.20x = 46,960.80 × 18,193.30
  4. Step 4: Simplify right side
    31,307.20x = 854,371,922.64
  5. Step 5: Solve for x
    x = 854,371,922.64/31,307.20
  6. Step 6: Final answer
    x = 27,289.95

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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.