Home / 13,799.24-20,702.10-3,938.66

Finding the Fourth Proportional to 13,799.24, 20,702.10 and 3,938.66

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Solution

The fourth proportional to 13,799.24, 20,702.10 and 3,938.66 is: 5,908.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.24 : 20,702.10 = 3,938.66 : x
  2. Step 2: Convert to fraction form
    13,799.24/20,702.10 = 3,938.66/x
  3. Step 3: Cross multiply
    13,799.24x = 20,702.10 × 3,938.66
  4. Step 4: Simplify right side
    13,799.24x = 81,538,533.19
  5. Step 5: Solve for x
    x = 81,538,533.19/13,799.24
  6. Step 6: Final answer
    x = 5,908.91

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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.