Home / 30,097.22-41,490.86-21,116.88

Finding the Fourth Proportional to 30,097.22, 41,490.86 and 21,116.88

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Solution

The fourth proportional to 30,097.22, 41,490.86 and 21,116.88 is: 29,110.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,097.22 : 41,490.86 = 21,116.88 : x
  2. Step 2: Convert to fraction form
    30,097.22/41,490.86 = 21,116.88/x
  3. Step 3: Cross multiply
    30,097.22x = 41,490.86 × 21,116.88
  4. Step 4: Simplify right side
    30,097.22x = 876,157,511.72
  5. Step 5: Solve for x
    x = 876,157,511.72/30,097.22
  6. Step 6: Final answer
    x = 29,110.91

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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.