Home / 20,154.03-30,231.35-7,674.75

Finding the Fourth Proportional to 20,154.03, 30,231.35 and 7,674.75

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Solution

The fourth proportional to 20,154.03, 30,231.35 and 7,674.75 is: 11,512.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.03 : 30,231.35 = 7,674.75 : x
  2. Step 2: Convert to fraction form
    20,154.03/30,231.35 = 7,674.75/x
  3. Step 3: Cross multiply
    20,154.03x = 30,231.35 × 7,674.75
  4. Step 4: Simplify right side
    20,154.03x = 232,017,883.07
  5. Step 5: Solve for x
    x = 232,017,883.07/20,154.03
  6. Step 6: Final answer
    x = 11,512.23

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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.