Home / 37,405-51,619.62-20,637.64

Finding the Fourth Proportional to 37,405, 51,619.62 and 20,637.64

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Solution

The fourth proportional to 37,405, 51,619.62 and 20,637.64 is: 28,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,405 : 51,619.62 = 20,637.64 : x
  2. Step 2: Convert to fraction form
    37,405/51,619.62 = 20,637.64/x
  3. Step 3: Cross multiply
    37,405x = 51,619.62 × 20,637.64
  4. Step 4: Simplify right side
    37,405x = 1,065,307,134.50
  5. Step 5: Solve for x
    x = 1,065,307,134.50/37,405
  6. Step 6: Final answer
    x = 28,480.34

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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.