Home / 36,021.60-54,032.40-18,493.20

Finding the Fourth Proportional to 36,021.60, 54,032.40 and 18,493.20

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Solution

The fourth proportional to 36,021.60, 54,032.40 and 18,493.20 is: 27,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.60 : 54,032.40 = 18,493.20 : x
  2. Step 2: Convert to fraction form
    36,021.60/54,032.40 = 18,493.20/x
  3. Step 3: Cross multiply
    36,021.60x = 54,032.40 × 18,493.20
  4. Step 4: Simplify right side
    36,021.60x = 999,231,979.68
  5. Step 5: Solve for x
    x = 999,231,979.68/36,021.60
  6. Step 6: Final answer
    x = 27,739.80

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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.