Home / 28,825.68-43,224.12-13,230

Finding the Fourth Proportional to 28,825.68, 43,224.12 and 13,230

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Solution

The fourth proportional to 28,825.68, 43,224.12 and 13,230 is: 19,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.68 : 43,224.12 = 13,230 : x
  2. Step 2: Convert to fraction form
    28,825.68/43,224.12 = 13,230/x
  3. Step 3: Cross multiply
    28,825.68x = 43,224.12 × 13,230
  4. Step 4: Simplify right side
    28,825.68x = 571,855,107.60
  5. Step 5: Solve for x
    x = 571,855,107.60/28,825.68
  6. Step 6: Final answer
    x = 19,838.39

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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.