Home / 39,067.48-53,913.18-21,162.64

Finding the Fourth Proportional to 39,067.48, 53,913.18 and 21,162.64

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Solution

The fourth proportional to 39,067.48, 53,913.18 and 21,162.64 is: 29,204.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,067.48 : 53,913.18 = 21,162.64 : x
  2. Step 2: Convert to fraction form
    39,067.48/53,913.18 = 21,162.64/x
  3. Step 3: Cross multiply
    39,067.48x = 53,913.18 × 21,162.64
  4. Step 4: Simplify right side
    39,067.48x = 1,140,945,219.60
  5. Step 5: Solve for x
    x = 1,140,945,219.60/39,067.48
  6. Step 6: Final answer
    x = 29,204.47

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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.