Home / 27,289.26-40,778.53-20,490.52

Finding the Fourth Proportional to 27,289.26, 40,778.53 and 20,490.52

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Solution

The fourth proportional to 27,289.26, 40,778.53 and 20,490.52 is: 30,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,289.26 : 40,778.53 = 20,490.52 : x
  2. Step 2: Convert to fraction form
    27,289.26/40,778.53 = 20,490.52/x
  3. Step 3: Cross multiply
    27,289.26x = 40,778.53 × 20,490.52
  4. Step 4: Simplify right side
    27,289.26x = 835,573,284.54
  5. Step 5: Solve for x
    x = 835,573,284.54/27,289.26
  6. Step 6: Final answer
    x = 30,619.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.