Home / 36,335.67-50,142.69-20,421.60

Finding the Fourth Proportional to 36,335.67, 50,142.69 and 20,421.60

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Solution

The fourth proportional to 36,335.67, 50,142.69 and 20,421.60 is: 28,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,335.67 : 50,142.69 = 20,421.60 : x
  2. Step 2: Convert to fraction form
    36,335.67/50,142.69 = 20,421.60/x
  3. Step 3: Cross multiply
    36,335.67x = 50,142.69 × 20,421.60
  4. Step 4: Simplify right side
    36,335.67x = 1,023,993,958.10
  5. Step 5: Solve for x
    x = 1,023,993,958.10/36,335.67
  6. Step 6: Final answer
    x = 28,181.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.