Home / 21,515.51-32,268.39-8,183.75

Finding the Fourth Proportional to 21,515.51, 32,268.39 and 8,183.75

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Solution

The fourth proportional to 21,515.51, 32,268.39 and 8,183.75 is: 12,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515.51 : 32,268.39 = 8,183.75 : x
  2. Step 2: Convert to fraction form
    21,515.51/32,268.39 = 8,183.75/x
  3. Step 3: Cross multiply
    21,515.51x = 32,268.39 × 8,183.75
  4. Step 4: Simplify right side
    21,515.51x = 264,076,275.32
  5. Step 5: Solve for x
    x = 264,076,275.32/21,515.51
  6. Step 6: Final answer
    x = 12,273.77

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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.