Home / 36,085.82-54,128.80-13,909.64

Finding the Fourth Proportional to 36,085.82, 54,128.80 and 13,909.64

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Solution

The fourth proportional to 36,085.82, 54,128.80 and 13,909.64 is: 20,864.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,085.82 : 54,128.80 = 13,909.64 : x
  2. Step 2: Convert to fraction form
    36,085.82/54,128.80 = 13,909.64/x
  3. Step 3: Cross multiply
    36,085.82x = 54,128.80 × 13,909.64
  4. Step 4: Simplify right side
    36,085.82x = 752,912,121.63
  5. Step 5: Solve for x
    x = 752,912,121.63/36,085.82
  6. Step 6: Final answer
    x = 20,864.49

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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.