Home / 21,886.24-30,201.60-12,454.56

Finding the Fourth Proportional to 21,886.24, 30,201.60 and 12,454.56

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Solution

The fourth proportional to 21,886.24, 30,201.60 and 12,454.56 is: 17,186.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886.24 : 30,201.60 = 12,454.56 : x
  2. Step 2: Convert to fraction form
    21,886.24/30,201.60 = 12,454.56/x
  3. Step 3: Cross multiply
    21,886.24x = 30,201.60 × 12,454.56
  4. Step 4: Simplify right side
    21,886.24x = 376,147,639.30
  5. Step 5: Solve for x
    x = 376,147,639.30/21,886.24
  6. Step 6: Final answer
    x = 17,186.49

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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.