Home / 31,985.18-47,979.21-9,796.94

Finding the Fourth Proportional to 31,985.18, 47,979.21 and 9,796.94

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Solution

The fourth proportional to 31,985.18, 47,979.21 and 9,796.94 is: 14,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.18 : 47,979.21 = 9,796.94 : x
  2. Step 2: Convert to fraction form
    31,985.18/47,979.21 = 9,796.94/x
  3. Step 3: Cross multiply
    31,985.18x = 47,979.21 × 9,796.94
  4. Step 4: Simplify right side
    31,985.18x = 470,049,441.62
  5. Step 5: Solve for x
    x = 470,049,441.62/31,985.18
  6. Step 6: Final answer
    x = 14,695.85

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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.