Home / 21,894.94-30,183.33-15,170.32

Finding the Fourth Proportional to 21,894.94, 30,183.33 and 15,170.32

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Solution

The fourth proportional to 21,894.94, 30,183.33 and 15,170.32 is: 20,913.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.94 : 30,183.33 = 15,170.32 : x
  2. Step 2: Convert to fraction form
    21,894.94/30,183.33 = 15,170.32/x
  3. Step 3: Cross multiply
    21,894.94x = 30,183.33 × 15,170.32
  4. Step 4: Simplify right side
    21,894.94x = 457,890,774.77
  5. Step 5: Solve for x
    x = 457,890,774.77/21,894.94
  6. Step 6: Final answer
    x = 20,913.09

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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.