Home / 21,080.20-29,093.57-12,127.48

Finding the Fourth Proportional to 21,080.20, 29,093.57 and 12,127.48

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Solution

The fourth proportional to 21,080.20, 29,093.57 and 12,127.48 is: 16,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.20 : 29,093.57 = 12,127.48 : x
  2. Step 2: Convert to fraction form
    21,080.20/29,093.57 = 12,127.48/x
  3. Step 3: Cross multiply
    21,080.20x = 29,093.57 × 12,127.48
  4. Step 4: Simplify right side
    21,080.20x = 352,831,688.30
  5. Step 5: Solve for x
    x = 352,831,688.30/21,080.20
  6. Step 6: Final answer
    x = 16,737.59

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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.