Home / 21,944.73-30,284.88-12,255.51

Finding the Fourth Proportional to 21,944.73, 30,284.88 and 12,255.51

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Solution

The fourth proportional to 21,944.73, 30,284.88 and 12,255.51 is: 16,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944.73 : 30,284.88 = 12,255.51 : x
  2. Step 2: Convert to fraction form
    21,944.73/30,284.88 = 12,255.51/x
  3. Step 3: Cross multiply
    21,944.73x = 30,284.88 × 12,255.51
  4. Step 4: Simplify right side
    21,944.73x = 371,156,649.69
  5. Step 5: Solve for x
    x = 371,156,649.69/21,944.73
  6. Step 6: Final answer
    x = 16,913.25

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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.