Home / 20,433.96-30,651.01-5,642.55

Finding the Fourth Proportional to 20,433.96, 30,651.01 and 5,642.55

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Solution

The fourth proportional to 20,433.96, 30,651.01 and 5,642.55 is: 8,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.96 : 30,651.01 = 5,642.55 : x
  2. Step 2: Convert to fraction form
    20,433.96/30,651.01 = 5,642.55/x
  3. Step 3: Cross multiply
    20,433.96x = 30,651.01 × 5,642.55
  4. Step 4: Simplify right side
    20,433.96x = 172,949,842.37
  5. Step 5: Solve for x
    x = 172,949,842.37/20,433.96
  6. Step 6: Final answer
    x = 8,463.84

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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.