Home / 30,618.28-42,255.66-17,190.41

Finding the Fourth Proportional to 30,618.28, 42,255.66 and 17,190.41

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Solution

The fourth proportional to 30,618.28, 42,255.66 and 17,190.41 is: 23,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,618.28 : 42,255.66 = 17,190.41 : x
  2. Step 2: Convert to fraction form
    30,618.28/42,255.66 = 17,190.41/x
  3. Step 3: Cross multiply
    30,618.28x = 42,255.66 × 17,190.41
  4. Step 4: Simplify right side
    30,618.28x = 726,392,290.32
  5. Step 5: Solve for x
    x = 726,392,290.32/30,618.28
  6. Step 6: Final answer
    x = 23,724.14

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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.