Home / 21,899.56-30,221.44-12,468.12

Finding the Fourth Proportional to 21,899.56, 30,221.44 and 12,468.12

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Solution

The fourth proportional to 21,899.56, 30,221.44 and 12,468.12 is: 17,206.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.56 : 30,221.44 = 12,468.12 : x
  2. Step 2: Convert to fraction form
    21,899.56/30,221.44 = 12,468.12/x
  3. Step 3: Cross multiply
    21,899.56x = 30,221.44 × 12,468.12
  4. Step 4: Simplify right side
    21,899.56x = 376,804,540.49
  5. Step 5: Solve for x
    x = 376,804,540.49/21,899.56
  6. Step 6: Final answer
    x = 17,206.03

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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.