Home / 28,940.25-43,410.27-9,220.40

Finding the Fourth Proportional to 28,940.25, 43,410.27 and 9,220.40

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Solution

The fourth proportional to 28,940.25, 43,410.27 and 9,220.40 is: 13,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,940.25 : 43,410.27 = 9,220.40 : x
  2. Step 2: Convert to fraction form
    28,940.25/43,410.27 = 9,220.40/x
  3. Step 3: Cross multiply
    28,940.25x = 43,410.27 × 9,220.40
  4. Step 4: Simplify right side
    28,940.25x = 400,259,836.46
  5. Step 5: Solve for x
    x = 400,259,836.46/28,940.25
  6. Step 6: Final answer
    x = 13,830.56

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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.