Home / 18,109.87-27,158.97-16,929.19

Finding the Fourth Proportional to 18,109.87, 27,158.97 and 16,929.19

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Solution

The fourth proportional to 18,109.87, 27,158.97 and 16,929.19 is: 25,388.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.87 : 27,158.97 = 16,929.19 : x
  2. Step 2: Convert to fraction form
    18,109.87/27,158.97 = 16,929.19/x
  3. Step 3: Cross multiply
    18,109.87x = 27,158.97 × 16,929.19
  4. Step 4: Simplify right side
    18,109.87x = 459,779,363.33
  5. Step 5: Solve for x
    x = 459,779,363.33/18,109.87
  6. Step 6: Final answer
    x = 25,388.33

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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.