Home / 21,021.24-29,010.24-12,069.12

Finding the Fourth Proportional to 21,021.24, 29,010.24 and 12,069.12

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Solution

The fourth proportional to 21,021.24, 29,010.24 and 12,069.12 is: 16,655.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021.24 : 29,010.24 = 12,069.12 : x
  2. Step 2: Convert to fraction form
    21,021.24/29,010.24 = 12,069.12/x
  3. Step 3: Cross multiply
    21,021.24x = 29,010.24 × 12,069.12
  4. Step 4: Simplify right side
    21,021.24x = 350,128,067.79
  5. Step 5: Solve for x
    x = 350,128,067.79/21,021.24
  6. Step 6: Final answer
    x = 16,655.92

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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.