Home / 39,749.69-54,854.52-21,845.83

Finding the Fourth Proportional to 39,749.69, 54,854.52 and 21,845.83

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Solution

The fourth proportional to 39,749.69, 54,854.52 and 21,845.83 is: 30,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749.69 : 54,854.52 = 21,845.83 : x
  2. Step 2: Convert to fraction form
    39,749.69/54,854.52 = 21,845.83/x
  3. Step 3: Cross multiply
    39,749.69x = 54,854.52 × 21,845.83
  4. Step 4: Simplify right side
    39,749.69x = 1,198,342,518.65
  5. Step 5: Solve for x
    x = 1,198,342,518.65/39,749.69
  6. Step 6: Final answer
    x = 30,147.22

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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.