Home / 28,112.06-38,793.12-15,536

Finding the Fourth Proportional to 28,112.06, 38,793.12 and 15,536

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Solution

The fourth proportional to 28,112.06, 38,793.12 and 15,536 is: 21,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,112.06 : 38,793.12 = 15,536 : x
  2. Step 2: Convert to fraction form
    28,112.06/38,793.12 = 15,536/x
  3. Step 3: Cross multiply
    28,112.06x = 38,793.12 × 15,536
  4. Step 4: Simplify right side
    28,112.06x = 602,689,912.32
  5. Step 5: Solve for x
    x = 602,689,912.32/28,112.06
  6. Step 6: Final answer
    x = 21,438.84

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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.