Home / 31,815.54-47,704.38-12,095.58

Finding the Fourth Proportional to 31,815.54, 47,704.38 and 12,095.58

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Solution

The fourth proportional to 31,815.54, 47,704.38 and 12,095.58 is: 18,136.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,815.54 : 47,704.38 = 12,095.58 : x
  2. Step 2: Convert to fraction form
    31,815.54/47,704.38 = 12,095.58/x
  3. Step 3: Cross multiply
    31,815.54x = 47,704.38 × 12,095.58
  4. Step 4: Simplify right side
    31,815.54x = 577,012,144.64
  5. Step 5: Solve for x
    x = 577,012,144.64/31,815.54
  6. Step 6: Final answer
    x = 18,136.17

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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.