Home / 20,277.72-27,996.44-18,149.60

Finding the Fourth Proportional to 20,277.72, 27,996.44 and 18,149.60

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Solution

The fourth proportional to 20,277.72, 27,996.44 and 18,149.60 is: 25,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.72 : 27,996.44 = 18,149.60 : x
  2. Step 2: Convert to fraction form
    20,277.72/27,996.44 = 18,149.60/x
  3. Step 3: Cross multiply
    20,277.72x = 27,996.44 × 18,149.60
  4. Step 4: Simplify right side
    20,277.72x = 508,124,187.42
  5. Step 5: Solve for x
    x = 508,124,187.42/20,277.72
  6. Step 6: Final answer
    x = 25,058.25

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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.