Home / 33,308.42-45,986.09-21,392.75

Finding the Fourth Proportional to 33,308.42, 45,986.09 and 21,392.75

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Solution

The fourth proportional to 33,308.42, 45,986.09 and 21,392.75 is: 29,535.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,308.42 : 45,986.09 = 21,392.75 : x
  2. Step 2: Convert to fraction form
    33,308.42/45,986.09 = 21,392.75/x
  3. Step 3: Cross multiply
    33,308.42x = 45,986.09 × 21,392.75
  4. Step 4: Simplify right side
    33,308.42x = 983,768,589.95
  5. Step 5: Solve for x
    x = 983,768,589.95/33,308.42
  6. Step 6: Final answer
    x = 29,535.14

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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.