Home / 37,415.36-51,634.31-20,420.71

Finding the Fourth Proportional to 37,415.36, 51,634.31 and 20,420.71

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Solution

The fourth proportional to 37,415.36, 51,634.31 and 20,420.71 is: 28,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,415.36 : 51,634.31 = 20,420.71 : x
  2. Step 2: Convert to fraction form
    37,415.36/51,634.31 = 20,420.71/x
  3. Step 3: Cross multiply
    37,415.36x = 51,634.31 × 20,420.71
  4. Step 4: Simplify right side
    37,415.36x = 1,054,409,039.37
  5. Step 5: Solve for x
    x = 1,054,409,039.37/37,415.36
  6. Step 6: Final answer
    x = 28,181.18

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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.