Home / 30,724.20-42,400.68-17,295.48

Finding the Fourth Proportional to 30,724.20, 42,400.68 and 17,295.48

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Solution

The fourth proportional to 30,724.20, 42,400.68 and 17,295.48 is: 23,868.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,724.20 : 42,400.68 = 17,295.48 : x
  2. Step 2: Convert to fraction form
    30,724.20/42,400.68 = 17,295.48/x
  3. Step 3: Cross multiply
    30,724.20x = 42,400.68 × 17,295.48
  4. Step 4: Simplify right side
    30,724.20x = 733,340,112.93
  5. Step 5: Solve for x
    x = 733,340,112.93/30,724.20
  6. Step 6: Final answer
    x = 23,868.49

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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.