Home / 20,972.08-28,940.97-12,024.82

Finding the Fourth Proportional to 20,972.08, 28,940.97 and 12,024.82

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Solution

The fourth proportional to 20,972.08, 28,940.97 and 12,024.82 is: 16,593.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,972.08 : 28,940.97 = 12,024.82 : x
  2. Step 2: Convert to fraction form
    20,972.08/28,940.97 = 12,024.82/x
  3. Step 3: Cross multiply
    20,972.08x = 28,940.97 × 12,024.82
  4. Step 4: Simplify right side
    20,972.08x = 348,009,954.88
  5. Step 5: Solve for x
    x = 348,009,954.88/20,972.08
  6. Step 6: Final answer
    x = 16,593.96

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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.