Home / 28,422.71-42,579.59-15,904.88

Finding the Fourth Proportional to 28,422.71, 42,579.59 and 15,904.88

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Solution

The fourth proportional to 28,422.71, 42,579.59 and 15,904.88 is: 23,826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422.71 : 42,579.59 = 15,904.88 : x
  2. Step 2: Convert to fraction form
    28,422.71/42,579.59 = 15,904.88/x
  3. Step 3: Cross multiply
    28,422.71x = 42,579.59 × 15,904.88
  4. Step 4: Simplify right side
    28,422.71x = 677,222,976.98
  5. Step 5: Solve for x
    x = 677,222,976.98/28,422.71
  6. Step 6: Final answer
    x = 23,826.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.