Home / 21,896.13-30,214.94-12,335.50

Finding the Fourth Proportional to 21,896.13, 30,214.94 and 12,335.50

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Solution

The fourth proportional to 21,896.13, 30,214.94 and 12,335.50 is: 17,022.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.13 : 30,214.94 = 12,335.50 : x
  2. Step 2: Convert to fraction form
    21,896.13/30,214.94 = 12,335.50/x
  3. Step 3: Cross multiply
    21,896.13x = 30,214.94 × 12,335.50
  4. Step 4: Simplify right side
    21,896.13x = 372,716,392.37
  5. Step 5: Solve for x
    x = 372,716,392.37/21,896.13
  6. Step 6: Final answer
    x = 17,022.02

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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.