Home / 37,406-51,621.36-20,640.08

Finding the Fourth Proportional to 37,406, 51,621.36 and 20,640.08

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Solution

The fourth proportional to 37,406, 51,621.36 and 20,640.08 is: 28,483.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,406 : 51,621.36 = 20,640.08 : x
  2. Step 2: Convert to fraction form
    37,406/51,621.36 = 20,640.08/x
  3. Step 3: Cross multiply
    37,406x = 51,621.36 × 20,640.08
  4. Step 4: Simplify right side
    37,406x = 1,065,469,000.11
  5. Step 5: Solve for x
    x = 1,065,469,000.11/37,406
  6. Step 6: Final answer
    x = 28,483.91

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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.