Home / 35,249.52-52,793.20-20,421.60

Finding the Fourth Proportional to 35,249.52, 52,793.20 and 20,421.60

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Solution

The fourth proportional to 35,249.52, 52,793.20 and 20,421.60 is: 30,585.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,249.52 : 52,793.20 = 20,421.60 : x
  2. Step 2: Convert to fraction form
    35,249.52/52,793.20 = 20,421.60/x
  3. Step 3: Cross multiply
    35,249.52x = 52,793.20 × 20,421.60
  4. Step 4: Simplify right side
    35,249.52x = 1,078,121,613.12
  5. Step 5: Solve for x
    x = 1,078,121,613.12/35,249.52
  6. Step 6: Final answer
    x = 30,585.43

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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.