Home / 31,746.60-47,634.48-31,221.72

Finding the Fourth Proportional to 31,746.60, 47,634.48 and 31,221.72

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Solution

The fourth proportional to 31,746.60, 47,634.48 and 31,221.72 is: 46,846.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,746.60 : 47,634.48 = 31,221.72 : x
  2. Step 2: Convert to fraction form
    31,746.60/47,634.48 = 31,221.72/x
  3. Step 3: Cross multiply
    31,746.60x = 47,634.48 × 31,221.72
  4. Step 4: Simplify right side
    31,746.60x = 1,487,230,396.91
  5. Step 5: Solve for x
    x = 1,487,230,396.91/31,746.60
  6. Step 6: Final answer
    x = 46,846.92

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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.