Home / 22,070.56-30,467.19-13,120.96

Finding the Fourth Proportional to 22,070.56, 30,467.19 and 13,120.96

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Solution

The fourth proportional to 22,070.56, 30,467.19 and 13,120.96 is: 18,112.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,070.56 : 30,467.19 = 13,120.96 : x
  2. Step 2: Convert to fraction form
    22,070.56/30,467.19 = 13,120.96/x
  3. Step 3: Cross multiply
    22,070.56x = 30,467.19 × 13,120.96
  4. Step 4: Simplify right side
    22,070.56x = 399,758,781.30
  5. Step 5: Solve for x
    x = 399,758,781.30/22,070.56
  6. Step 6: Final answer
    x = 18,112.76

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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.