Home / 21,896.09-30,205.14-13,826.82

Finding the Fourth Proportional to 21,896.09, 30,205.14 and 13,826.82

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Solution

The fourth proportional to 21,896.09, 30,205.14 and 13,826.82 is: 19,073.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.09 : 30,205.14 = 13,826.82 : x
  2. Step 2: Convert to fraction form
    21,896.09/30,205.14 = 13,826.82/x
  3. Step 3: Cross multiply
    21,896.09x = 30,205.14 × 13,826.82
  4. Step 4: Simplify right side
    21,896.09x = 417,640,882.83
  5. Step 5: Solve for x
    x = 417,640,882.83/21,896.09
  6. Step 6: Final answer
    x = 19,073.77

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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.