Home / 36,439.36-54,757.86-19,811.68

Finding the Fourth Proportional to 36,439.36, 54,757.86 and 19,811.68

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Solution

The fourth proportional to 36,439.36, 54,757.86 and 19,811.68 is: 29,771.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,439.36 : 54,757.86 = 19,811.68 : x
  2. Step 2: Convert to fraction form
    36,439.36/54,757.86 = 19,811.68/x
  3. Step 3: Cross multiply
    36,439.36x = 54,757.86 × 19,811.68
  4. Step 4: Simplify right side
    36,439.36x = 1,084,845,199.80
  5. Step 5: Solve for x
    x = 1,084,845,199.80/36,439.36
  6. Step 6: Final answer
    x = 29,771.25

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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.