Home / 15,645.22-23,328.28-13,906.56

Finding the Fourth Proportional to 15,645.22, 23,328.28 and 13,906.56

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Solution

The fourth proportional to 15,645.22, 23,328.28 and 13,906.56 is: 20,735.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645.22 : 23,328.28 = 13,906.56 : x
  2. Step 2: Convert to fraction form
    15,645.22/23,328.28 = 13,906.56/x
  3. Step 3: Cross multiply
    15,645.22x = 23,328.28 × 13,906.56
  4. Step 4: Simplify right side
    15,645.22x = 324,416,099.16
  5. Step 5: Solve for x
    x = 324,416,099.16/15,645.22
  6. Step 6: Final answer
    x = 20,735.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.