Home / 20,582.02-30,869.80-6,540.20

Finding the Fourth Proportional to 20,582.02, 30,869.80 and 6,540.20

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Solution

The fourth proportional to 20,582.02, 30,869.80 and 6,540.20 is: 9,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.02 : 30,869.80 = 6,540.20 : x
  2. Step 2: Convert to fraction form
    20,582.02/30,869.80 = 6,540.20/x
  3. Step 3: Cross multiply
    20,582.02x = 30,869.80 × 6,540.20
  4. Step 4: Simplify right side
    20,582.02x = 201,894,665.96
  5. Step 5: Solve for x
    x = 201,894,665.96/20,582.02
  6. Step 6: Final answer
    x = 9,809.27

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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.