Home / 20,083.87-30,122.36-5,292.91

Finding the Fourth Proportional to 20,083.87, 30,122.36 and 5,292.91

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Solution

The fourth proportional to 20,083.87, 30,122.36 and 5,292.91 is: 7,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.87 : 30,122.36 = 5,292.91 : x
  2. Step 2: Convert to fraction form
    20,083.87/30,122.36 = 5,292.91/x
  3. Step 3: Cross multiply
    20,083.87x = 30,122.36 × 5,292.91
  4. Step 4: Simplify right side
    20,083.87x = 159,434,940.47
  5. Step 5: Solve for x
    x = 159,434,940.47/20,083.87
  6. Step 6: Final answer
    x = 7,938.46

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1.5x scale

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.