Home / 33,668.80-46,492.32-21,115.20

Finding the Fourth Proportional to 33,668.80, 46,492.32 and 21,115.20

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Solution

The fourth proportional to 33,668.80, 46,492.32 and 21,115.20 is: 29,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,668.80 : 46,492.32 = 21,115.20 : x
  2. Step 2: Convert to fraction form
    33,668.80/46,492.32 = 21,115.20/x
  3. Step 3: Cross multiply
    33,668.80x = 46,492.32 × 21,115.20
  4. Step 4: Simplify right side
    33,668.80x = 981,694,635.26
  5. Step 5: Solve for x
    x = 981,694,635.26/33,668.80
  6. Step 6: Final answer
    x = 29,157.40

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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.