Home / 19,295.05-28,943.08-5,255.20

Finding the Fourth Proportional to 19,295.05, 28,943.08 and 5,255.20

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Solution

The fourth proportional to 19,295.05, 28,943.08 and 5,255.20 is: 7,882.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,295.05 : 28,943.08 = 5,255.20 : x
  2. Step 2: Convert to fraction form
    19,295.05/28,943.08 = 5,255.20/x
  3. Step 3: Cross multiply
    19,295.05x = 28,943.08 × 5,255.20
  4. Step 4: Simplify right side
    19,295.05x = 152,101,614.80
  5. Step 5: Solve for x
    x = 152,101,614.80/19,295.05
  6. Step 6: Final answer
    x = 7,882.93

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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.