Home / 33,418.88-46,118.05-19,990.70

Finding the Fourth Proportional to 33,418.88, 46,118.05 and 19,990.70

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Solution

The fourth proportional to 33,418.88, 46,118.05 and 19,990.70 is: 27,587.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,418.88 : 46,118.05 = 19,990.70 : x
  2. Step 2: Convert to fraction form
    33,418.88/46,118.05 = 19,990.70/x
  3. Step 3: Cross multiply
    33,418.88x = 46,118.05 × 19,990.70
  4. Step 4: Simplify right side
    33,418.88x = 921,931,821.57
  5. Step 5: Solve for x
    x = 921,931,821.57/33,418.88
  6. Step 6: Final answer
    x = 27,587.16

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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.