Home / 30,124.62-41,568-17,378.28

Finding the Fourth Proportional to 30,124.62, 41,568 and 17,378.28

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Solution

The fourth proportional to 30,124.62, 41,568 and 17,378.28 is: 23,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,124.62 : 41,568 = 17,378.28 : x
  2. Step 2: Convert to fraction form
    30,124.62/41,568 = 17,378.28/x
  3. Step 3: Cross multiply
    30,124.62x = 41,568 × 17,378.28
  4. Step 4: Simplify right side
    30,124.62x = 722,380,343.04
  5. Step 5: Solve for x
    x = 722,380,343.04/30,124.62
  6. Step 6: Final answer
    x = 23,979.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.