Home / 38,388.30-57,588.53-13,427.75

Finding the Fourth Proportional to 38,388.30, 57,588.53 and 13,427.75

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Solution

The fourth proportional to 38,388.30, 57,588.53 and 13,427.75 is: 20,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,388.30 : 57,588.53 = 13,427.75 : x
  2. Step 2: Convert to fraction form
    38,388.30/57,588.53 = 13,427.75/x
  3. Step 3: Cross multiply
    38,388.30x = 57,588.53 × 13,427.75
  4. Step 4: Simplify right side
    38,388.30x = 773,284,028.63
  5. Step 5: Solve for x
    x = 773,284,028.63/38,388.30
  6. Step 6: Final answer
    x = 20,143.74

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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.