Home / 19,156.05-28,734.09-5,305.05

Finding the Fourth Proportional to 19,156.05, 28,734.09 and 5,305.05

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Solution

The fourth proportional to 19,156.05, 28,734.09 and 5,305.05 is: 7,957.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.05 : 28,734.09 = 5,305.05 : x
  2. Step 2: Convert to fraction form
    19,156.05/28,734.09 = 5,305.05/x
  3. Step 3: Cross multiply
    19,156.05x = 28,734.09 × 5,305.05
  4. Step 4: Simplify right side
    19,156.05x = 152,435,784.15
  5. Step 5: Solve for x
    x = 152,435,784.15/19,156.05
  6. Step 6: Final answer
    x = 7,957.58

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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.