Home / 20,384.51-30,581.09-6,543.23

Finding the Fourth Proportional to 20,384.51, 30,581.09 and 6,543.23

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Solution

The fourth proportional to 20,384.51, 30,581.09 and 6,543.23 is: 9,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.51 : 30,581.09 = 6,543.23 : x
  2. Step 2: Convert to fraction form
    20,384.51/30,581.09 = 6,543.23/x
  3. Step 3: Cross multiply
    20,384.51x = 30,581.09 × 6,543.23
  4. Step 4: Simplify right side
    20,384.51x = 200,099,072.80
  5. Step 5: Solve for x
    x = 200,099,072.80/20,384.51
  6. Step 6: Final answer
    x = 9,816.23

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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.