Home / 28,227.20-38,955.92-15,656

Finding the Fourth Proportional to 28,227.20, 38,955.92 and 15,656

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Solution

The fourth proportional to 28,227.20, 38,955.92 and 15,656 is: 21,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.20 : 38,955.92 = 15,656 : x
  2. Step 2: Convert to fraction form
    28,227.20/38,955.92 = 15,656/x
  3. Step 3: Cross multiply
    28,227.20x = 38,955.92 × 15,656
  4. Step 4: Simplify right side
    28,227.20x = 609,893,883.52
  5. Step 5: Solve for x
    x = 609,893,883.52/28,227.20
  6. Step 6: Final answer
    x = 21,606.60

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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.