Home / 21,896.73-30,206.12-13,925.12

Finding the Fourth Proportional to 21,896.73, 30,206.12 and 13,925.12

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Solution

The fourth proportional to 21,896.73, 30,206.12 and 13,925.12 is: 19,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.73 : 30,206.12 = 13,925.12 : x
  2. Step 2: Convert to fraction form
    21,896.73/30,206.12 = 13,925.12/x
  3. Step 3: Cross multiply
    21,896.73x = 30,206.12 × 13,925.12
  4. Step 4: Simplify right side
    21,896.73x = 420,623,625.08
  5. Step 5: Solve for x
    x = 420,623,625.08/21,896.73
  6. Step 6: Final answer
    x = 19,209.43

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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.