Home / 19,324.92-28,814.29-18,975

Finding the Fourth Proportional to 19,324.92, 28,814.29 and 18,975

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Solution

The fourth proportional to 19,324.92, 28,814.29 and 18,975 is: 28,292.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,324.92 : 28,814.29 = 18,975 : x
  2. Step 2: Convert to fraction form
    19,324.92/28,814.29 = 18,975/x
  3. Step 3: Cross multiply
    19,324.92x = 28,814.29 × 18,975
  4. Step 4: Simplify right side
    19,324.92x = 546,751,152.75
  5. Step 5: Solve for x
    x = 546,751,152.75/19,324.92
  6. Step 6: Final answer
    x = 28,292.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.