Home / 39,633.99-54,697.46-21,729.04

Finding the Fourth Proportional to 39,633.99, 54,697.46 and 21,729.04

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Solution

The fourth proportional to 39,633.99, 54,697.46 and 21,729.04 is: 29,987.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,633.99 : 54,697.46 = 21,729.04 : x
  2. Step 2: Convert to fraction form
    39,633.99/54,697.46 = 21,729.04/x
  3. Step 3: Cross multiply
    39,633.99x = 54,697.46 × 21,729.04
  4. Step 4: Simplify right side
    39,633.99x = 1,188,523,296.24
  5. Step 5: Solve for x
    x = 1,188,523,296.24/39,633.99
  6. Step 6: Final answer
    x = 29,987.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.