Home / 19,035.81-28,546.43-7,947.72

Finding the Fourth Proportional to 19,035.81, 28,546.43 and 7,947.72

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Solution

The fourth proportional to 19,035.81, 28,546.43 and 7,947.72 is: 11,918.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,035.81 : 28,546.43 = 7,947.72 : x
  2. Step 2: Convert to fraction form
    19,035.81/28,546.43 = 7,947.72/x
  3. Step 3: Cross multiply
    19,035.81x = 28,546.43 × 7,947.72
  4. Step 4: Simplify right side
    19,035.81x = 226,878,992.90
  5. Step 5: Solve for x
    x = 226,878,992.90/19,035.81
  6. Step 6: Final answer
    x = 11,918.54

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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.