Home / 31,872.30-47,808.43-15,181.74

Finding the Fourth Proportional to 31,872.30, 47,808.43 and 15,181.74

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Solution

The fourth proportional to 31,872.30, 47,808.43 and 15,181.74 is: 22,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,872.30 : 47,808.43 = 15,181.74 : x
  2. Step 2: Convert to fraction form
    31,872.30/47,808.43 = 15,181.74/x
  3. Step 3: Cross multiply
    31,872.30x = 47,808.43 × 15,181.74
  4. Step 4: Simplify right side
    31,872.30x = 725,815,154.07
  5. Step 5: Solve for x
    x = 725,815,154.07/31,872.30
  6. Step 6: Final answer
    x = 22,772.60

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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.