Home / 36,291.52-54,447.36-20,720.08

Finding the Fourth Proportional to 36,291.52, 54,447.36 and 20,720.08

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Solution

The fourth proportional to 36,291.52, 54,447.36 and 20,720.08 is: 31,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,291.52 : 54,447.36 = 20,720.08 : x
  2. Step 2: Convert to fraction form
    36,291.52/54,447.36 = 20,720.08/x
  3. Step 3: Cross multiply
    36,291.52x = 54,447.36 × 20,720.08
  4. Step 4: Simplify right side
    36,291.52x = 1,128,153,654.99
  5. Step 5: Solve for x
    x = 1,128,153,654.99/36,291.52
  6. Step 6: Final answer
    x = 31,085.88

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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.