Home / 38,281.68-57,448.67-13,321.49

Finding the Fourth Proportional to 38,281.68, 57,448.67 and 13,321.49

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Solution

The fourth proportional to 38,281.68, 57,448.67 and 13,321.49 is: 19,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,281.68 : 57,448.67 = 13,321.49 : x
  2. Step 2: Convert to fraction form
    38,281.68/57,448.67 = 13,321.49/x
  3. Step 3: Cross multiply
    38,281.68x = 57,448.67 × 13,321.49
  4. Step 4: Simplify right side
    38,281.68x = 765,301,529.07
  5. Step 5: Solve for x
    x = 765,301,529.07/38,281.68
  6. Step 6: Final answer
    x = 19,991.33

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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.