Home / 20,343.42-30,479.24-17,816.41

Finding the Fourth Proportional to 20,343.42, 30,479.24 and 17,816.41

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Solution

The fourth proportional to 20,343.42, 30,479.24 and 17,816.41 is: 26,693.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343.42 : 30,479.24 = 17,816.41 : x
  2. Step 2: Convert to fraction form
    20,343.42/30,479.24 = 17,816.41/x
  3. Step 3: Cross multiply
    20,343.42x = 30,479.24 × 17,816.41
  4. Step 4: Simplify right side
    20,343.42x = 543,030,636.33
  5. Step 5: Solve for x
    x = 543,030,636.33/20,343.42
  6. Step 6: Final answer
    x = 26,693.18

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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.