Home / 39,067.90-53,913.96-21,162.91

Finding the Fourth Proportional to 39,067.90, 53,913.96 and 21,162.91

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Solution

The fourth proportional to 39,067.90, 53,913.96 and 21,162.91 is: 29,204.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,067.90 : 53,913.96 = 21,162.91 : x
  2. Step 2: Convert to fraction form
    39,067.90/53,913.96 = 21,162.91/x
  3. Step 3: Cross multiply
    39,067.90x = 53,913.96 × 21,162.91
  4. Step 4: Simplify right side
    39,067.90x = 1,140,976,013.65
  5. Step 5: Solve for x
    x = 1,140,976,013.65/39,067.90
  6. Step 6: Final answer
    x = 29,204.95

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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.