Home / 30,103.28-41,542.84-18,164.32

Finding the Fourth Proportional to 30,103.28, 41,542.84 and 18,164.32

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Solution

The fourth proportional to 30,103.28, 41,542.84 and 18,164.32 is: 25,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.28 : 41,542.84 = 18,164.32 : x
  2. Step 2: Convert to fraction form
    30,103.28/41,542.84 = 18,164.32/x
  3. Step 3: Cross multiply
    30,103.28x = 41,542.84 × 18,164.32
  4. Step 4: Simplify right side
    30,103.28x = 754,597,439.47
  5. Step 5: Solve for x
    x = 754,597,439.47/30,103.28
  6. Step 6: Final answer
    x = 25,066.95

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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.