Home / 39,610.85-54,662.97-21,461.60

Finding the Fourth Proportional to 39,610.85, 54,662.97 and 21,461.60

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Solution

The fourth proportional to 39,610.85, 54,662.97 and 21,461.60 is: 29,617.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,610.85 : 54,662.97 = 21,461.60 : x
  2. Step 2: Convert to fraction form
    39,610.85/54,662.97 = 21,461.60/x
  3. Step 3: Cross multiply
    39,610.85x = 54,662.97 × 21,461.60
  4. Step 4: Simplify right side
    39,610.85x = 1,173,154,523.64
  5. Step 5: Solve for x
    x = 1,173,154,523.64/39,610.85
  6. Step 6: Final answer
    x = 29,617.00

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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.