Home / 28,149.30-42,198.03-13,365.18

Finding the Fourth Proportional to 28,149.30, 42,198.03 and 13,365.18

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Solution

The fourth proportional to 28,149.30, 42,198.03 and 13,365.18 is: 20,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.30 : 42,198.03 = 13,365.18 : x
  2. Step 2: Convert to fraction form
    28,149.30/42,198.03 = 13,365.18/x
  3. Step 3: Cross multiply
    28,149.30x = 42,198.03 × 13,365.18
  4. Step 4: Simplify right side
    28,149.30x = 563,984,266.60
  5. Step 5: Solve for x
    x = 563,984,266.60/28,149.30
  6. Step 6: Final answer
    x = 20,035.46

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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.