Home / 28,852.43-43,274.30-9,128.42

Finding the Fourth Proportional to 28,852.43, 43,274.30 and 9,128.42

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Solution

The fourth proportional to 28,852.43, 43,274.30 and 9,128.42 is: 13,691.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,852.43 : 43,274.30 = 9,128.42 : x
  2. Step 2: Convert to fraction form
    28,852.43/43,274.30 = 9,128.42/x
  3. Step 3: Cross multiply
    28,852.43x = 43,274.30 × 9,128.42
  4. Step 4: Simplify right side
    28,852.43x = 395,025,723.59
  5. Step 5: Solve for x
    x = 395,025,723.59/28,852.43
  6. Step 6: Final answer
    x = 13,691.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.