Home / 31,769.70-43,841.34-18,340.50

Finding the Fourth Proportional to 31,769.70, 43,841.34 and 18,340.50

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Solution

The fourth proportional to 31,769.70, 43,841.34 and 18,340.50 is: 25,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,769.70 : 43,841.34 = 18,340.50 : x
  2. Step 2: Convert to fraction form
    31,769.70/43,841.34 = 18,340.50/x
  3. Step 3: Cross multiply
    31,769.70x = 43,841.34 × 18,340.50
  4. Step 4: Simplify right side
    31,769.70x = 804,072,096.27
  5. Step 5: Solve for x
    x = 804,072,096.27/31,769.70
  6. Step 6: Final answer
    x = 25,309.40

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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.