Home / 39,066.48-53,911.80-21,161.64

Finding the Fourth Proportional to 39,066.48, 53,911.80 and 21,161.64

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Solution

The fourth proportional to 39,066.48, 53,911.80 and 21,161.64 is: 29,203.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,066.48 : 53,911.80 = 21,161.64 : x
  2. Step 2: Convert to fraction form
    39,066.48/53,911.80 = 21,161.64/x
  3. Step 3: Cross multiply
    39,066.48x = 53,911.80 × 21,161.64
  4. Step 4: Simplify right side
    39,066.48x = 1,140,862,103.35
  5. Step 5: Solve for x
    x = 1,140,862,103.35/39,066.48
  6. Step 6: Final answer
    x = 29,203.09

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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.