Home / 20,242.81-30,364.22-10,375.80

Finding the Fourth Proportional to 20,242.81, 30,364.22 and 10,375.80

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Solution

The fourth proportional to 20,242.81, 30,364.22 and 10,375.80 is: 15,563.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.81 : 30,364.22 = 10,375.80 : x
  2. Step 2: Convert to fraction form
    20,242.81/30,364.22 = 10,375.80/x
  3. Step 3: Cross multiply
    20,242.81x = 30,364.22 × 10,375.80
  4. Step 4: Simplify right side
    20,242.81x = 315,052,927.59
  5. Step 5: Solve for x
    x = 315,052,927.59/20,242.81
  6. Step 6: Final answer
    x = 15,563.69

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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.