Home / 31,579.15-43,579.20-17,431.96

Finding the Fourth Proportional to 31,579.15, 43,579.20 and 17,431.96

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Solution

The fourth proportional to 31,579.15, 43,579.20 and 17,431.96 is: 24,056.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,579.15 : 43,579.20 = 17,431.96 : x
  2. Step 2: Convert to fraction form
    31,579.15/43,579.20 = 17,431.96/x
  3. Step 3: Cross multiply
    31,579.15x = 43,579.20 × 17,431.96
  4. Step 4: Simplify right side
    31,579.15x = 759,670,871.23
  5. Step 5: Solve for x
    x = 759,670,871.23/31,579.15
  6. Step 6: Final answer
    x = 24,056.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.