Home / 31,343.20-47,056.52-18,205

Finding the Fourth Proportional to 31,343.20, 47,056.52 and 18,205

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Solution

The fourth proportional to 31,343.20, 47,056.52 and 18,205 is: 27,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,343.20 : 47,056.52 = 18,205 : x
  2. Step 2: Convert to fraction form
    31,343.20/47,056.52 = 18,205/x
  3. Step 3: Cross multiply
    31,343.20x = 47,056.52 × 18,205
  4. Step 4: Simplify right side
    31,343.20x = 856,663,946.60
  5. Step 5: Solve for x
    x = 856,663,946.60/31,343.20
  6. Step 6: Final answer
    x = 27,331.73

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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.