Home / 21,922.76-30,257.36-12,365.58

Finding the Fourth Proportional to 21,922.76, 30,257.36 and 12,365.58

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Solution

The fourth proportional to 21,922.76, 30,257.36 and 12,365.58 is: 17,066.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.76 : 30,257.36 = 12,365.58 : x
  2. Step 2: Convert to fraction form
    21,922.76/30,257.36 = 12,365.58/x
  3. Step 3: Cross multiply
    21,922.76x = 30,257.36 × 12,365.58
  4. Step 4: Simplify right side
    21,922.76x = 374,149,805.67
  5. Step 5: Solve for x
    x = 374,149,805.67/21,922.76
  6. Step 6: Final answer
    x = 17,066.73

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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.