Home / 21,468.15-29,627.76-11,908.98

Finding the Fourth Proportional to 21,468.15, 29,627.76 and 11,908.98

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Solution

The fourth proportional to 21,468.15, 29,627.76 and 11,908.98 is: 16,435.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,468.15 : 29,627.76 = 11,908.98 : x
  2. Step 2: Convert to fraction form
    21,468.15/29,627.76 = 11,908.98/x
  3. Step 3: Cross multiply
    21,468.15x = 29,627.76 × 11,908.98
  4. Step 4: Simplify right side
    21,468.15x = 352,836,401.28
  5. Step 5: Solve for x
    x = 352,836,401.28/21,468.15
  6. Step 6: Final answer
    x = 16,435.34

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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.