Home / 21,742.12-30,004.26-11,806.12

Finding the Fourth Proportional to 21,742.12, 30,004.26 and 11,806.12

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Solution

The fourth proportional to 21,742.12, 30,004.26 and 11,806.12 is: 16,292.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.12 : 30,004.26 = 11,806.12 : x
  2. Step 2: Convert to fraction form
    21,742.12/30,004.26 = 11,806.12/x
  3. Step 3: Cross multiply
    21,742.12x = 30,004.26 × 11,806.12
  4. Step 4: Simplify right side
    21,742.12x = 354,233,894.07
  5. Step 5: Solve for x
    x = 354,233,894.07/21,742.12
  6. Step 6: Final answer
    x = 16,292.52

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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.