Home / 21,967.57-30,315.39-11,896.01

Finding the Fourth Proportional to 21,967.57, 30,315.39 and 11,896.01

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Solution

The fourth proportional to 21,967.57, 30,315.39 and 11,896.01 is: 16,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.57 : 30,315.39 = 11,896.01 : x
  2. Step 2: Convert to fraction form
    21,967.57/30,315.39 = 11,896.01/x
  3. Step 3: Cross multiply
    21,967.57x = 30,315.39 × 11,896.01
  4. Step 4: Simplify right side
    21,967.57x = 360,632,100.09
  5. Step 5: Solve for x
    x = 360,632,100.09/21,967.57
  6. Step 6: Final answer
    x = 16,416.57

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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.