Home / 38,289.68-57,448.92-13,331.60

Finding the Fourth Proportional to 38,289.68, 57,448.92 and 13,331.60

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Solution

The fourth proportional to 38,289.68, 57,448.92 and 13,331.60 is: 20,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,289.68 : 57,448.92 = 13,331.60 : x
  2. Step 2: Convert to fraction form
    38,289.68/57,448.92 = 13,331.60/x
  3. Step 3: Cross multiply
    38,289.68x = 57,448.92 × 13,331.60
  4. Step 4: Simplify right side
    38,289.68x = 765,886,021.87
  5. Step 5: Solve for x
    x = 765,886,021.87/38,289.68
  6. Step 6: Final answer
    x = 20,002.41

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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.