Home / 27,339.76-37,730.61-20,613.52

Finding the Fourth Proportional to 27,339.76, 37,730.61 and 20,613.52

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Solution

The fourth proportional to 27,339.76, 37,730.61 and 20,613.52 is: 28,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,339.76 : 37,730.61 = 20,613.52 : x
  2. Step 2: Convert to fraction form
    27,339.76/37,730.61 = 20,613.52/x
  3. Step 3: Cross multiply
    27,339.76x = 37,730.61 × 20,613.52
  4. Step 4: Simplify right side
    27,339.76x = 777,760,683.85
  5. Step 5: Solve for x
    x = 777,760,683.85/27,339.76
  6. Step 6: Final answer
    x = 28,447.97

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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.