Home / 20,382.05-30,523.70-10,360.44

Finding the Fourth Proportional to 20,382.05, 30,523.70 and 10,360.44

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Solution

The fourth proportional to 20,382.05, 30,523.70 and 10,360.44 is: 15,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,382.05 : 30,523.70 = 10,360.44 : x
  2. Step 2: Convert to fraction form
    20,382.05/30,523.70 = 10,360.44/x
  3. Step 3: Cross multiply
    20,382.05x = 30,523.70 × 10,360.44
  4. Step 4: Simplify right side
    20,382.05x = 316,238,988.33
  5. Step 5: Solve for x
    x = 316,238,988.33/20,382.05
  6. Step 6: Final answer
    x = 15,515.56

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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.