Home / 37,985.85-56,986.97-20,451.60

Finding the Fourth Proportional to 37,985.85, 56,986.97 and 20,451.60

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Solution

The fourth proportional to 37,985.85, 56,986.97 and 20,451.60 is: 30,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,985.85 : 56,986.97 = 20,451.60 : x
  2. Step 2: Convert to fraction form
    37,985.85/56,986.97 = 20,451.60/x
  3. Step 3: Cross multiply
    37,985.85x = 56,986.97 × 20,451.60
  4. Step 4: Simplify right side
    37,985.85x = 1,165,474,613.39
  5. Step 5: Solve for x
    x = 1,165,474,613.39/37,985.85
  6. Step 6: Final answer
    x = 30,681.81

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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.