Home / 30,012.88-41,373.84-21,033.24

Finding the Fourth Proportional to 30,012.88, 41,373.84 and 21,033.24

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Solution

The fourth proportional to 30,012.88, 41,373.84 and 21,033.24 is: 28,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,012.88 : 41,373.84 = 21,033.24 : x
  2. Step 2: Convert to fraction form
    30,012.88/41,373.84 = 21,033.24/x
  3. Step 3: Cross multiply
    30,012.88x = 41,373.84 × 21,033.24
  4. Step 4: Simplify right side
    30,012.88x = 870,225,906.44
  5. Step 5: Solve for x
    x = 870,225,906.44/30,012.88
  6. Step 6: Final answer
    x = 28,995.08

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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.