Home / 31,982.72-47,977.28-9,795.84

Finding the Fourth Proportional to 31,982.72, 47,977.28 and 9,795.84

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Solution

The fourth proportional to 31,982.72, 47,977.28 and 9,795.84 is: 14,694.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,982.72 : 47,977.28 = 9,795.84 : x
  2. Step 2: Convert to fraction form
    31,982.72/47,977.28 = 9,795.84/x
  3. Step 3: Cross multiply
    31,982.72x = 47,977.28 × 9,795.84
  4. Step 4: Simplify right side
    31,982.72x = 469,977,758.52
  5. Step 5: Solve for x
    x = 469,977,758.52/31,982.72
  6. Step 6: Final answer
    x = 14,694.74

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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.