Home / 39,611.20-54,661.44-21,703

Finding the Fourth Proportional to 39,611.20, 54,661.44 and 21,703

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Solution

The fourth proportional to 39,611.20, 54,661.44 and 21,703 is: 29,949.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,611.20 : 54,661.44 = 21,703 : x
  2. Step 2: Convert to fraction form
    39,611.20/54,661.44 = 21,703/x
  3. Step 3: Cross multiply
    39,611.20x = 54,661.44 × 21,703
  4. Step 4: Simplify right side
    39,611.20x = 1,186,317,232.32
  5. Step 5: Solve for x
    x = 1,186,317,232.32/39,611.20
  6. Step 6: Final answer
    x = 29,949.04

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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.