Home / 21,668.36-29,902.97-12,107.93

Finding the Fourth Proportional to 21,668.36, 29,902.97 and 12,107.93

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Solution

The fourth proportional to 21,668.36, 29,902.97 and 12,107.93 is: 16,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.36 : 29,902.97 = 12,107.93 : x
  2. Step 2: Convert to fraction form
    21,668.36/29,902.97 = 12,107.93/x
  3. Step 3: Cross multiply
    21,668.36x = 29,902.97 × 12,107.93
  4. Step 4: Simplify right side
    21,668.36x = 362,063,116.51
  5. Step 5: Solve for x
    x = 362,063,116.51/21,668.36
  6. Step 6: Final answer
    x = 16,709.30

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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.