Home / 28,832.43-39,729.69-21,266.77

Finding the Fourth Proportional to 28,832.43, 39,729.69 and 21,266.77

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Solution

The fourth proportional to 28,832.43, 39,729.69 and 21,266.77 is: 29,304.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,832.43 : 39,729.69 = 21,266.77 : x
  2. Step 2: Convert to fraction form
    28,832.43/39,729.69 = 21,266.77/x
  3. Step 3: Cross multiply
    28,832.43x = 39,729.69 × 21,266.77
  4. Step 4: Simplify right side
    28,832.43x = 844,922,179.40
  5. Step 5: Solve for x
    x = 844,922,179.40/28,832.43
  6. Step 6: Final answer
    x = 29,304.58

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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.