Home / 13,622.64-20,434.01-3,761.70

Finding the Fourth Proportional to 13,622.64, 20,434.01 and 3,761.70

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Solution

The fourth proportional to 13,622.64, 20,434.01 and 3,761.70 is: 5,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.64 : 20,434.01 = 3,761.70 : x
  2. Step 2: Convert to fraction form
    13,622.64/20,434.01 = 3,761.70/x
  3. Step 3: Cross multiply
    13,622.64x = 20,434.01 × 3,761.70
  4. Step 4: Simplify right side
    13,622.64x = 76,866,596.61
  5. Step 5: Solve for x
    x = 76,866,596.61/13,622.64
  6. Step 6: Final answer
    x = 5,642.56

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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.