Home / 30,343.41-41,879.23-23,161.55

Finding the Fourth Proportional to 30,343.41, 41,879.23 and 23,161.55

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Solution

The fourth proportional to 30,343.41, 41,879.23 and 23,161.55 is: 31,966.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,343.41 : 41,879.23 = 23,161.55 : x
  2. Step 2: Convert to fraction form
    30,343.41/41,879.23 = 23,161.55/x
  3. Step 3: Cross multiply
    30,343.41x = 41,879.23 × 23,161.55
  4. Step 4: Simplify right side
    30,343.41x = 969,987,612.31
  5. Step 5: Solve for x
    x = 969,987,612.31/30,343.41
  6. Step 6: Final answer
    x = 31,966.99

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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.