Home / 19,087.20-28,631.52-5,237.28

Finding the Fourth Proportional to 19,087.20, 28,631.52 and 5,237.28

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Solution

The fourth proportional to 19,087.20, 28,631.52 and 5,237.28 is: 7,856.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.20 : 28,631.52 = 5,237.28 : x
  2. Step 2: Convert to fraction form
    19,087.20/28,631.52 = 5,237.28/x
  3. Step 3: Cross multiply
    19,087.20x = 28,631.52 × 5,237.28
  4. Step 4: Simplify right side
    19,087.20x = 149,951,287.07
  5. Step 5: Solve for x
    x = 149,951,287.07/19,087.20
  6. Step 6: Final answer
    x = 7,856.12

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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.