Home / 13,848.26-20,769.42-3,985.70

Finding the Fourth Proportional to 13,848.26, 20,769.42 and 3,985.70

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Solution

The fourth proportional to 13,848.26, 20,769.42 and 3,985.70 is: 5,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.26 : 20,769.42 = 3,985.70 : x
  2. Step 2: Convert to fraction form
    13,848.26/20,769.42 = 3,985.70/x
  3. Step 3: Cross multiply
    13,848.26x = 20,769.42 × 3,985.70
  4. Step 4: Simplify right side
    13,848.26x = 82,780,677.29
  5. Step 5: Solve for x
    x = 82,780,677.29/13,848.26
  6. Step 6: Final answer
    x = 5,977.70

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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.