Home / 37,642.80-56,464.20-20,103.60

Finding the Fourth Proportional to 37,642.80, 56,464.20 and 20,103.60

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Solution

The fourth proportional to 37,642.80, 56,464.20 and 20,103.60 is: 30,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,642.80 : 56,464.20 = 20,103.60 : x
  2. Step 2: Convert to fraction form
    37,642.80/56,464.20 = 20,103.60/x
  3. Step 3: Cross multiply
    37,642.80x = 56,464.20 × 20,103.60
  4. Step 4: Simplify right side
    37,642.80x = 1,135,133,691.12
  5. Step 5: Solve for x
    x = 1,135,133,691.12/37,642.80
  6. Step 6: Final answer
    x = 30,155.40

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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.