Home / 31,702.05-43,743.15-18,273.87

Finding the Fourth Proportional to 31,702.05, 43,743.15 and 18,273.87

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Solution

The fourth proportional to 31,702.05, 43,743.15 and 18,273.87 is: 25,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,702.05 : 43,743.15 = 18,273.87 : x
  2. Step 2: Convert to fraction form
    31,702.05/43,743.15 = 18,273.87/x
  3. Step 3: Cross multiply
    31,702.05x = 43,743.15 × 18,273.87
  4. Step 4: Simplify right side
    31,702.05x = 799,356,636.49
  5. Step 5: Solve for x
    x = 799,356,636.49/31,702.05
  6. Step 6: Final answer
    x = 25,214.67

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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.