Home / 20,006.39-30,070.31-13,366.44

Finding the Fourth Proportional to 20,006.39, 30,070.31 and 13,366.44

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Solution

The fourth proportional to 20,006.39, 30,070.31 and 13,366.44 is: 20,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.39 : 30,070.31 = 13,366.44 : x
  2. Step 2: Convert to fraction form
    20,006.39/30,070.31 = 13,366.44/x
  3. Step 3: Cross multiply
    20,006.39x = 30,070.31 × 13,366.44
  4. Step 4: Simplify right side
    20,006.39x = 401,932,927.56
  5. Step 5: Solve for x
    x = 401,932,927.56/20,006.39
  6. Step 6: Final answer
    x = 20,090.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.