Home / 20,172.48-27,838.20-11,674.56

Finding the Fourth Proportional to 20,172.48, 27,838.20 and 11,674.56

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Solution

The fourth proportional to 20,172.48, 27,838.20 and 11,674.56 is: 16,111.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.48 : 27,838.20 = 11,674.56 : x
  2. Step 2: Convert to fraction form
    20,172.48/27,838.20 = 11,674.56/x
  3. Step 3: Cross multiply
    20,172.48x = 27,838.20 × 11,674.56
  4. Step 4: Simplify right side
    20,172.48x = 324,998,736.19
  5. Step 5: Solve for x
    x = 324,998,736.19/20,172.48
  6. Step 6: Final answer
    x = 16,111.00

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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.