Home / 37,636-51,936.60-20,639.92

Finding the Fourth Proportional to 37,636, 51,936.60 and 20,639.92

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Solution

The fourth proportional to 37,636, 51,936.60 and 20,639.92 is: 28,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,636 : 51,936.60 = 20,639.92 : x
  2. Step 2: Convert to fraction form
    37,636/51,936.60 = 20,639.92/x
  3. Step 3: Cross multiply
    37,636x = 51,936.60 × 20,639.92
  4. Step 4: Simplify right side
    37,636x = 1,071,967,269.07
  5. Step 5: Solve for x
    x = 1,071,967,269.07/37,636
  6. Step 6: Final answer
    x = 28,482.50

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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.