Home / 28,945.70-43,309.20-19,104.20

Finding the Fourth Proportional to 28,945.70, 43,309.20 and 19,104.20

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Solution

The fourth proportional to 28,945.70, 43,309.20 and 19,104.20 is: 28,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.70 : 43,309.20 = 19,104.20 : x
  2. Step 2: Convert to fraction form
    28,945.70/43,309.20 = 19,104.20/x
  3. Step 3: Cross multiply
    28,945.70x = 43,309.20 × 19,104.20
  4. Step 4: Simplify right side
    28,945.70x = 827,387,618.64
  5. Step 5: Solve for x
    x = 827,387,618.64/28,945.70
  6. Step 6: Final answer
    x = 28,584.13

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1.5x scale

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.