Home / 30,194.21-45,351.68-18,210.32

Finding the Fourth Proportional to 30,194.21, 45,351.68 and 18,210.32

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Solution

The fourth proportional to 30,194.21, 45,351.68 and 18,210.32 is: 27,351.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,194.21 : 45,351.68 = 18,210.32 : x
  2. Step 2: Convert to fraction form
    30,194.21/45,351.68 = 18,210.32/x
  3. Step 3: Cross multiply
    30,194.21x = 45,351.68 × 18,210.32
  4. Step 4: Simplify right side
    30,194.21x = 825,868,287.53
  5. Step 5: Solve for x
    x = 825,868,287.53/30,194.21
  6. Step 6: Final answer
    x = 27,351.88

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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.