Home / 21,736.16-29,996.03-12,784.04

Finding the Fourth Proportional to 21,736.16, 29,996.03 and 12,784.04

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Solution

The fourth proportional to 21,736.16, 29,996.03 and 12,784.04 is: 17,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.16 : 29,996.03 = 12,784.04 : x
  2. Step 2: Convert to fraction form
    21,736.16/29,996.03 = 12,784.04/x
  3. Step 3: Cross multiply
    21,736.16x = 29,996.03 × 12,784.04
  4. Step 4: Simplify right side
    21,736.16x = 383,470,383.44
  5. Step 5: Solve for x
    x = 383,470,383.44/21,736.16
  6. Step 6: Final answer
    x = 17,642.05

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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.