Home / 39,519.48-54,537.96-21,615.54

Finding the Fourth Proportional to 39,519.48, 54,537.96 and 21,615.54

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Solution

The fourth proportional to 39,519.48, 54,537.96 and 21,615.54 is: 29,830.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,519.48 : 54,537.96 = 21,615.54 : x
  2. Step 2: Convert to fraction form
    39,519.48/54,537.96 = 21,615.54/x
  3. Step 3: Cross multiply
    39,519.48x = 54,537.96 × 21,615.54
  4. Step 4: Simplify right side
    39,519.48x = 1,178,867,455.90
  5. Step 5: Solve for x
    x = 1,178,867,455.90/39,519.48
  6. Step 6: Final answer
    x = 29,830.03

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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.