Home / 21,895.70-30,216.09-12,464.25

Finding the Fourth Proportional to 21,895.70, 30,216.09 and 12,464.25

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Solution

The fourth proportional to 21,895.70, 30,216.09 and 12,464.25 is: 17,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.70 : 30,216.09 = 12,464.25 : x
  2. Step 2: Convert to fraction form
    21,895.70/30,216.09 = 12,464.25/x
  3. Step 3: Cross multiply
    21,895.70x = 30,216.09 × 12,464.25
  4. Step 4: Simplify right side
    21,895.70x = 376,620,899.78
  5. Step 5: Solve for x
    x = 376,620,899.78/21,895.70
  6. Step 6: Final answer
    x = 17,200.68

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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.