Home / 20,542.24-30,825.60-8,855.20

Finding the Fourth Proportional to 20,542.24, 30,825.60 and 8,855.20

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Solution

The fourth proportional to 20,542.24, 30,825.60 and 8,855.20 is: 13,288.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.24 : 30,825.60 = 8,855.20 : x
  2. Step 2: Convert to fraction form
    20,542.24/30,825.60 = 8,855.20/x
  3. Step 3: Cross multiply
    20,542.24x = 30,825.60 × 8,855.20
  4. Step 4: Simplify right side
    20,542.24x = 272,966,853.12
  5. Step 5: Solve for x
    x = 272,966,853.12/20,542.24
  6. Step 6: Final answer
    x = 13,288.08

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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.