Home / 45,023.04-67,542.66-13,851

Finding the Fourth Proportional to 45,023.04, 67,542.66 and 13,851

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Solution

The fourth proportional to 45,023.04, 67,542.66 and 13,851 is: 20,778.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,023.04 : 67,542.66 = 13,851 : x
  2. Step 2: Convert to fraction form
    45,023.04/67,542.66 = 13,851/x
  3. Step 3: Cross multiply
    45,023.04x = 67,542.66 × 13,851
  4. Step 4: Simplify right side
    45,023.04x = 935,533,383.66
  5. Step 5: Solve for x
    x = 935,533,383.66/45,023.04
  6. Step 6: Final answer
    x = 20,778.99

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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.