Home / 21,896.46-30,217.20-12,336.45

Finding the Fourth Proportional to 21,896.46, 30,217.20 and 12,336.45

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Solution

The fourth proportional to 21,896.46, 30,217.20 and 12,336.45 is: 17,024.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.46 : 30,217.20 = 12,336.45 : x
  2. Step 2: Convert to fraction form
    21,896.46/30,217.20 = 12,336.45/x
  3. Step 3: Cross multiply
    21,896.46x = 30,217.20 × 12,336.45
  4. Step 4: Simplify right side
    21,896.46x = 372,772,976.94
  5. Step 5: Solve for x
    x = 372,772,976.94/21,896.46
  6. Step 6: Final answer
    x = 17,024.35

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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.