Home / 18,429.47-27,622.32-10,622.15

Finding the Fourth Proportional to 18,429.47, 27,622.32 and 10,622.15

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Solution

The fourth proportional to 18,429.47, 27,622.32 and 10,622.15 is: 15,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.47 : 27,622.32 = 10,622.15 : x
  2. Step 2: Convert to fraction form
    18,429.47/27,622.32 = 10,622.15/x
  3. Step 3: Cross multiply
    18,429.47x = 27,622.32 × 10,622.15
  4. Step 4: Simplify right side
    18,429.47x = 293,408,288.28
  5. Step 5: Solve for x
    x = 293,408,288.28/18,429.47
  6. Step 6: Final answer
    x = 15,920.61

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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.