Home / 20,111.04-27,756.12-11,611.48

Finding the Fourth Proportional to 20,111.04, 27,756.12 and 11,611.48

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Solution

The fourth proportional to 20,111.04, 27,756.12 and 11,611.48 is: 16,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.04 : 27,756.12 = 11,611.48 : x
  2. Step 2: Convert to fraction form
    20,111.04/27,756.12 = 11,611.48/x
  3. Step 3: Cross multiply
    20,111.04x = 27,756.12 × 11,611.48
  4. Step 4: Simplify right side
    20,111.04x = 322,289,632.26
  5. Step 5: Solve for x
    x = 322,289,632.26/20,111.04
  6. Step 6: Final answer
    x = 16,025.51

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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.