Home / 20,140.37-30,213.62-10,274.26

Finding the Fourth Proportional to 20,140.37, 30,213.62 and 10,274.26

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Solution

The fourth proportional to 20,140.37, 30,213.62 and 10,274.26 is: 15,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.37 : 30,213.62 = 10,274.26 : x
  2. Step 2: Convert to fraction form
    20,140.37/30,213.62 = 10,274.26/x
  3. Step 3: Cross multiply
    20,140.37x = 30,213.62 × 10,274.26
  4. Step 4: Simplify right side
    20,140.37x = 310,422,612.35
  5. Step 5: Solve for x
    x = 310,422,612.35/20,140.37
  6. Step 6: Final answer
    x = 15,412.96

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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.