Home / 21,076.54-29,086.48-12,124.04

Finding the Fourth Proportional to 21,076.54, 29,086.48 and 12,124.04

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Solution

The fourth proportional to 21,076.54, 29,086.48 and 12,124.04 is: 16,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.54 : 29,086.48 = 12,124.04 : x
  2. Step 2: Convert to fraction form
    21,076.54/29,086.48 = 12,124.04/x
  3. Step 3: Cross multiply
    21,076.54x = 29,086.48 × 12,124.04
  4. Step 4: Simplify right side
    21,076.54x = 352,645,646.98
  5. Step 5: Solve for x
    x = 352,645,646.98/21,076.54
  6. Step 6: Final answer
    x = 16,731.67

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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.