Home / 28,884.36-39,835.46-18,809

Finding the Fourth Proportional to 28,884.36, 39,835.46 and 18,809

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Solution

The fourth proportional to 28,884.36, 39,835.46 and 18,809 is: 25,940.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.36 : 39,835.46 = 18,809 : x
  2. Step 2: Convert to fraction form
    28,884.36/39,835.46 = 18,809/x
  3. Step 3: Cross multiply
    28,884.36x = 39,835.46 × 18,809
  4. Step 4: Simplify right side
    28,884.36x = 749,265,167.14
  5. Step 5: Solve for x
    x = 749,265,167.14/28,884.36
  6. Step 6: Final answer
    x = 25,940.17

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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.