Home / 27,328.24-37,674.48-20,621.44

Finding the Fourth Proportional to 27,328.24, 37,674.48 and 20,621.44

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Solution

The fourth proportional to 27,328.24, 37,674.48 and 20,621.44 is: 28,428.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,328.24 : 37,674.48 = 20,621.44 : x
  2. Step 2: Convert to fraction form
    27,328.24/37,674.48 = 20,621.44/x
  3. Step 3: Cross multiply
    27,328.24x = 37,674.48 × 20,621.44
  4. Step 4: Simplify right side
    27,328.24x = 776,902,028.85
  5. Step 5: Solve for x
    x = 776,902,028.85/27,328.24
  6. Step 6: Final answer
    x = 28,428.54

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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.