Home / 18,567.54-27,850.85-5,420.03

Finding the Fourth Proportional to 18,567.54, 27,850.85 and 5,420.03

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Solution

The fourth proportional to 18,567.54, 27,850.85 and 5,420.03 is: 8,129.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567.54 : 27,850.85 = 5,420.03 : x
  2. Step 2: Convert to fraction form
    18,567.54/27,850.85 = 5,420.03/x
  3. Step 3: Cross multiply
    18,567.54x = 27,850.85 × 5,420.03
  4. Step 4: Simplify right side
    18,567.54x = 150,952,442.53
  5. Step 5: Solve for x
    x = 150,952,442.53/18,567.54
  6. Step 6: Final answer
    x = 8,129.91

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1.5x scale

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.