Home / 31,669.06-47,540.40-18,530.86

Finding the Fourth Proportional to 31,669.06, 47,540.40 and 18,530.86

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Solution

The fourth proportional to 31,669.06, 47,540.40 and 18,530.86 is: 27,817.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.06 : 47,540.40 = 18,530.86 : x
  2. Step 2: Convert to fraction form
    31,669.06/47,540.40 = 18,530.86/x
  3. Step 3: Cross multiply
    31,669.06x = 47,540.40 × 18,530.86
  4. Step 4: Simplify right side
    31,669.06x = 880,964,496.74
  5. Step 5: Solve for x
    x = 880,964,496.74/31,669.06
  6. Step 6: Final answer
    x = 27,817.83

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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.