Home / 20,148.06-27,803.70-11,195.34

Finding the Fourth Proportional to 20,148.06, 27,803.70 and 11,195.34

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Solution

The fourth proportional to 20,148.06, 27,803.70 and 11,195.34 is: 15,449.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.06 : 27,803.70 = 11,195.34 : x
  2. Step 2: Convert to fraction form
    20,148.06/27,803.70 = 11,195.34/x
  3. Step 3: Cross multiply
    20,148.06x = 27,803.70 × 11,195.34
  4. Step 4: Simplify right side
    20,148.06x = 311,271,874.76
  5. Step 5: Solve for x
    x = 311,271,874.76/20,148.06
  6. Step 6: Final answer
    x = 15,449.22

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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.