Home / 38,142.54-52,635.24-21,147.03

Finding the Fourth Proportional to 38,142.54, 52,635.24 and 21,147.03

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Solution

The fourth proportional to 38,142.54, 52,635.24 and 21,147.03 is: 29,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142.54 : 52,635.24 = 21,147.03 : x
  2. Step 2: Convert to fraction form
    38,142.54/52,635.24 = 21,147.03/x
  3. Step 3: Cross multiply
    38,142.54x = 52,635.24 × 21,147.03
  4. Step 4: Simplify right side
    38,142.54x = 1,113,078,999.34
  5. Step 5: Solve for x
    x = 1,113,078,999.34/38,142.54
  6. Step 6: Final answer
    x = 29,182.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.