Home / 21,895.57-30,218.16-12,464.74

Finding the Fourth Proportional to 21,895.57, 30,218.16 and 12,464.74

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Solution

The fourth proportional to 21,895.57, 30,218.16 and 12,464.74 is: 17,202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.57 : 30,218.16 = 12,464.74 : x
  2. Step 2: Convert to fraction form
    21,895.57/30,218.16 = 12,464.74/x
  3. Step 3: Cross multiply
    21,895.57x = 30,218.16 × 12,464.74
  4. Step 4: Simplify right side
    21,895.57x = 376,661,507.68
  5. Step 5: Solve for x
    x = 376,661,507.68/21,895.57
  6. Step 6: Final answer
    x = 17,202.64

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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.