Home / 28,194.64-38,906.92-15,618.48

Finding the Fourth Proportional to 28,194.64, 38,906.92 and 15,618.48

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Solution

The fourth proportional to 28,194.64, 38,906.92 and 15,618.48 is: 21,552.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.64 : 38,906.92 = 15,618.48 : x
  2. Step 2: Convert to fraction form
    28,194.64/38,906.92 = 15,618.48/x
  3. Step 3: Cross multiply
    28,194.64x = 38,906.92 × 15,618.48
  4. Step 4: Simplify right side
    28,194.64x = 607,666,951.88
  5. Step 5: Solve for x
    x = 607,666,951.88/28,194.64
  6. Step 6: Final answer
    x = 21,552.57

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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.