Home / 36,490.80-54,736.20-13,119.60

Finding the Fourth Proportional to 36,490.80, 54,736.20 and 13,119.60

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Solution

The fourth proportional to 36,490.80, 54,736.20 and 13,119.60 is: 19,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,490.80 : 54,736.20 = 13,119.60 : x
  2. Step 2: Convert to fraction form
    36,490.80/54,736.20 = 13,119.60/x
  3. Step 3: Cross multiply
    36,490.80x = 54,736.20 × 13,119.60
  4. Step 4: Simplify right side
    36,490.80x = 718,117,049.52
  5. Step 5: Solve for x
    x = 718,117,049.52/36,490.80
  6. Step 6: Final answer
    x = 19,679.40

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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.