Home / 13,833.60-20,750.42-3,970.58

Finding the Fourth Proportional to 13,833.60, 20,750.42 and 3,970.58

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Solution

The fourth proportional to 13,833.60, 20,750.42 and 3,970.58 is: 5,955.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,833.60 : 20,750.42 = 3,970.58 : x
  2. Step 2: Convert to fraction form
    13,833.60/20,750.42 = 3,970.58/x
  3. Step 3: Cross multiply
    13,833.60x = 20,750.42 × 3,970.58
  4. Step 4: Simplify right side
    13,833.60x = 82,391,202.64
  5. Step 5: Solve for x
    x = 82,391,202.64/13,833.60
  6. Step 6: Final answer
    x = 5,955.88

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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.