Home / 13,427.03-20,139-3,567.11

Finding the Fourth Proportional to 13,427.03, 20,139 and 3,567.11

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Solution

The fourth proportional to 13,427.03, 20,139 and 3,567.11 is: 5,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.03 : 20,139 = 3,567.11 : x
  2. Step 2: Convert to fraction form
    13,427.03/20,139 = 3,567.11/x
  3. Step 3: Cross multiply
    13,427.03x = 20,139 × 3,567.11
  4. Step 4: Simplify right side
    13,427.03x = 71,837,927.60
  5. Step 5: Solve for x
    x = 71,837,927.60/13,427.03
  6. Step 6: Final answer
    x = 5,350.25

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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.