Home / 30,560.49-42,172.83-17,132.85

Finding the Fourth Proportional to 30,560.49, 42,172.83 and 17,132.85

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Solution

The fourth proportional to 30,560.49, 42,172.83 and 17,132.85 is: 23,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.49 : 42,172.83 = 17,132.85 : x
  2. Step 2: Convert to fraction form
    30,560.49/42,172.83 = 17,132.85/x
  3. Step 3: Cross multiply
    30,560.49x = 42,172.83 × 17,132.85
  4. Step 4: Simplify right side
    30,560.49x = 722,540,770.47
  5. Step 5: Solve for x
    x = 722,540,770.47/30,560.49
  6. Step 6: Final answer
    x = 23,642.97

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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.