Home / 20,775.57-31,164.03-5,985.24

Finding the Fourth Proportional to 20,775.57, 31,164.03 and 5,985.24

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Solution

The fourth proportional to 20,775.57, 31,164.03 and 5,985.24 is: 8,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775.57 : 31,164.03 = 5,985.24 : x
  2. Step 2: Convert to fraction form
    20,775.57/31,164.03 = 5,985.24/x
  3. Step 3: Cross multiply
    20,775.57x = 31,164.03 × 5,985.24
  4. Step 4: Simplify right side
    20,775.57x = 186,524,198.92
  5. Step 5: Solve for x
    x = 186,524,198.92/20,775.57
  6. Step 6: Final answer
    x = 8,978.05

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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.