Home / 20,504.87-30,746.37-10,619.63

Finding the Fourth Proportional to 20,504.87, 30,746.37 and 10,619.63

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Solution

The fourth proportional to 20,504.87, 30,746.37 and 10,619.63 is: 15,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.87 : 30,746.37 = 10,619.63 : x
  2. Step 2: Convert to fraction form
    20,504.87/30,746.37 = 10,619.63/x
  3. Step 3: Cross multiply
    20,504.87x = 30,746.37 × 10,619.63
  4. Step 4: Simplify right side
    20,504.87x = 326,515,189.93
  5. Step 5: Solve for x
    x = 326,515,189.93/20,504.87
  6. Step 6: Final answer
    x = 15,923.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.