Home / 31,382.22-47,069.15-11,658.09

Finding the Fourth Proportional to 31,382.22, 47,069.15 and 11,658.09

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Solution

The fourth proportional to 31,382.22, 47,069.15 and 11,658.09 is: 17,485.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.22 : 47,069.15 = 11,658.09 : x
  2. Step 2: Convert to fraction form
    31,382.22/47,069.15 = 11,658.09/x
  3. Step 3: Cross multiply
    31,382.22x = 47,069.15 × 11,658.09
  4. Step 4: Simplify right side
    31,382.22x = 548,736,328.63
  5. Step 5: Solve for x
    x = 548,736,328.63/31,382.22
  6. Step 6: Final answer
    x = 17,485.58

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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.