Home / 20,258.12-30,388.26-19,150.04

Finding the Fourth Proportional to 20,258.12, 30,388.26 and 19,150.04

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Solution

The fourth proportional to 20,258.12, 30,388.26 and 19,150.04 is: 28,726.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.12 : 30,388.26 = 19,150.04 : x
  2. Step 2: Convert to fraction form
    20,258.12/30,388.26 = 19,150.04/x
  3. Step 3: Cross multiply
    20,258.12x = 30,388.26 × 19,150.04
  4. Step 4: Simplify right side
    20,258.12x = 581,936,394.53
  5. Step 5: Solve for x
    x = 581,936,394.53/20,258.12
  6. Step 6: Final answer
    x = 28,726.08

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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.