Home / 21,107.01-29,127.90-11,546.69

Finding the Fourth Proportional to 21,107.01, 29,127.90 and 11,546.69

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Solution

The fourth proportional to 21,107.01, 29,127.90 and 11,546.69 is: 15,934.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107.01 : 29,127.90 = 11,546.69 : x
  2. Step 2: Convert to fraction form
    21,107.01/29,127.90 = 11,546.69/x
  3. Step 3: Cross multiply
    21,107.01x = 29,127.90 × 11,546.69
  4. Step 4: Simplify right side
    21,107.01x = 336,330,795.24
  5. Step 5: Solve for x
    x = 336,330,795.24/21,107.01
  6. Step 6: Final answer
    x = 15,934.56

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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.