Home / 20,358.43-30,530.44-9,683.53

Finding the Fourth Proportional to 20,358.43, 30,530.44 and 9,683.53

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Solution

The fourth proportional to 20,358.43, 30,530.44 and 9,683.53 is: 14,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.43 : 30,530.44 = 9,683.53 : x
  2. Step 2: Convert to fraction form
    20,358.43/30,530.44 = 9,683.53/x
  3. Step 3: Cross multiply
    20,358.43x = 30,530.44 × 9,683.53
  4. Step 4: Simplify right side
    20,358.43x = 295,642,431.65
  5. Step 5: Solve for x
    x = 295,642,431.65/20,358.43
  6. Step 6: Final answer
    x = 14,521.87

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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.