Home / 20,052.87-27,672.69-11,100.34

Finding the Fourth Proportional to 20,052.87, 27,672.69 and 11,100.34

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Solution

The fourth proportional to 20,052.87, 27,672.69 and 11,100.34 is: 15,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,052.87 : 27,672.69 = 11,100.34 : x
  2. Step 2: Convert to fraction form
    20,052.87/27,672.69 = 11,100.34/x
  3. Step 3: Cross multiply
    20,052.87x = 27,672.69 × 11,100.34
  4. Step 4: Simplify right side
    20,052.87x = 307,176,281.49
  5. Step 5: Solve for x
    x = 307,176,281.49/20,052.87
  6. Step 6: Final answer
    x = 15,318.32

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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.