Home / 39,067.92-53,913.60-21,162.88

Finding the Fourth Proportional to 39,067.92, 53,913.60 and 21,162.88

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Solution

The fourth proportional to 39,067.92, 53,913.60 and 21,162.88 is: 29,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,067.92 : 53,913.60 = 21,162.88 : x
  2. Step 2: Convert to fraction form
    39,067.92/53,913.60 = 21,162.88/x
  3. Step 3: Cross multiply
    39,067.92x = 53,913.60 × 21,162.88
  4. Step 4: Simplify right side
    39,067.92x = 1,140,967,047.17
  5. Step 5: Solve for x
    x = 1,140,967,047.17/39,067.92
  6. Step 6: Final answer
    x = 29,204.70

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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.