Home / 20,076.35-30,092.78-13,061.39

Finding the Fourth Proportional to 20,076.35, 30,092.78 and 13,061.39

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Solution

The fourth proportional to 20,076.35, 30,092.78 and 13,061.39 is: 19,577.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.35 : 30,092.78 = 13,061.39 : x
  2. Step 2: Convert to fraction form
    20,076.35/30,092.78 = 13,061.39/x
  3. Step 3: Cross multiply
    20,076.35x = 30,092.78 × 13,061.39
  4. Step 4: Simplify right side
    20,076.35x = 393,053,417.95
  5. Step 5: Solve for x
    x = 393,053,417.95/20,076.35
  6. Step 6: Final answer
    x = 19,577.94

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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.