Home / 13,769.34-20,653.83-3,381

Finding the Fourth Proportional to 13,769.34, 20,653.83 and 3,381

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Solution

The fourth proportional to 13,769.34, 20,653.83 and 3,381 is: 5,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.34 : 20,653.83 = 3,381 : x
  2. Step 2: Convert to fraction form
    13,769.34/20,653.83 = 3,381/x
  3. Step 3: Cross multiply
    13,769.34x = 20,653.83 × 3,381
  4. Step 4: Simplify right side
    13,769.34x = 69,830,599.23
  5. Step 5: Solve for x
    x = 69,830,599.23/13,769.34
  6. Step 6: Final answer
    x = 5,071.46

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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.