Home / 21,897.92-30,219.13-11,826.36

Finding the Fourth Proportional to 21,897.92, 30,219.13 and 11,826.36

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Solution

The fourth proportional to 21,897.92, 30,219.13 and 11,826.36 is: 16,320.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897.92 : 30,219.13 = 11,826.36 : x
  2. Step 2: Convert to fraction form
    21,897.92/30,219.13 = 11,826.36/x
  3. Step 3: Cross multiply
    21,897.92x = 30,219.13 × 11,826.36
  4. Step 4: Simplify right side
    21,897.92x = 357,382,216.03
  5. Step 5: Solve for x
    x = 357,382,216.03/21,897.92
  6. Step 6: Final answer
    x = 16,320.37

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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.