Home / 15,291-22,939.80-4,760.81

Finding the Fourth Proportional to 15,291, 22,939.80 and 4,760.81

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Solution

The fourth proportional to 15,291, 22,939.80 and 4,760.81 is: 7,142.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291 : 22,939.80 = 4,760.81 : x
  2. Step 2: Convert to fraction form
    15,291/22,939.80 = 4,760.81/x
  3. Step 3: Cross multiply
    15,291x = 22,939.80 × 4,760.81
  4. Step 4: Simplify right side
    15,291x = 109,211,914.54
  5. Step 5: Solve for x
    x = 109,211,914.54/15,291
  6. Step 6: Final answer
    x = 7,142.23

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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.