Home / 28,339.48-39,109.26-17,155

Finding the Fourth Proportional to 28,339.48, 39,109.26 and 17,155

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Solution

The fourth proportional to 28,339.48, 39,109.26 and 17,155 is: 23,674.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339.48 : 39,109.26 = 17,155 : x
  2. Step 2: Convert to fraction form
    28,339.48/39,109.26 = 17,155/x
  3. Step 3: Cross multiply
    28,339.48x = 39,109.26 × 17,155
  4. Step 4: Simplify right side
    28,339.48x = 670,919,355.30
  5. Step 5: Solve for x
    x = 670,919,355.30/28,339.48
  6. Step 6: Final answer
    x = 23,674.37

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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.