Home / 37,518.78-51,775.26-20,751.78

Finding the Fourth Proportional to 37,518.78, 51,775.26 and 20,751.78

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Solution

The fourth proportional to 37,518.78, 51,775.26 and 20,751.78 is: 28,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,518.78 : 51,775.26 = 20,751.78 : x
  2. Step 2: Convert to fraction form
    37,518.78/51,775.26 = 20,751.78/x
  3. Step 3: Cross multiply
    37,518.78x = 51,775.26 × 20,751.78
  4. Step 4: Simplify right side
    37,518.78x = 1,074,428,804.96
  5. Step 5: Solve for x
    x = 1,074,428,804.96/37,518.78
  6. Step 6: Final answer
    x = 28,637.09

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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.