Home / 36,679.57-55,019.35-19,145.30

Finding the Fourth Proportional to 36,679.57, 55,019.35 and 19,145.30

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Solution

The fourth proportional to 36,679.57, 55,019.35 and 19,145.30 is: 28,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,679.57 : 55,019.35 = 19,145.30 : x
  2. Step 2: Convert to fraction form
    36,679.57/55,019.35 = 19,145.30/x
  3. Step 3: Cross multiply
    36,679.57x = 55,019.35 × 19,145.30
  4. Step 4: Simplify right side
    36,679.57x = 1,053,361,710.39
  5. Step 5: Solve for x
    x = 1,053,361,710.39/36,679.57
  6. Step 6: Final answer
    x = 28,717.94

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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.