Home / 21,895.88-30,216.35-12,464.45

Finding the Fourth Proportional to 21,895.88, 30,216.35 and 12,464.45

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Solution

The fourth proportional to 21,895.88, 30,216.35 and 12,464.45 is: 17,200.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.88 : 30,216.35 = 12,464.45 : x
  2. Step 2: Convert to fraction form
    21,895.88/30,216.35 = 12,464.45/x
  3. Step 3: Cross multiply
    21,895.88x = 30,216.35 × 12,464.45
  4. Step 4: Simplify right side
    21,895.88x = 376,629,970.35
  5. Step 5: Solve for x
    x = 376,629,970.35/21,895.88
  6. Step 6: Final answer
    x = 17,200.96

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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.