Home / 42,268.43-63,406.87-15,621.42

Finding the Fourth Proportional to 42,268.43, 63,406.87 and 15,621.42

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Solution

The fourth proportional to 42,268.43, 63,406.87 and 15,621.42 is: 23,433.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,268.43 : 63,406.87 = 15,621.42 : x
  2. Step 2: Convert to fraction form
    42,268.43/63,406.87 = 15,621.42/x
  3. Step 3: Cross multiply
    42,268.43x = 63,406.87 × 15,621.42
  4. Step 4: Simplify right side
    42,268.43x = 990,505,269.05
  5. Step 5: Solve for x
    x = 990,505,269.05/42,268.43
  6. Step 6: Final answer
    x = 23,433.69

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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.