Home / 20,556.36-30,835.16-8,079.53

Finding the Fourth Proportional to 20,556.36, 30,835.16 and 8,079.53

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Solution

The fourth proportional to 20,556.36, 30,835.16 and 8,079.53 is: 12,119.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.36 : 30,835.16 = 8,079.53 : x
  2. Step 2: Convert to fraction form
    20,556.36/30,835.16 = 8,079.53/x
  3. Step 3: Cross multiply
    20,556.36x = 30,835.16 × 8,079.53
  4. Step 4: Simplify right side
    20,556.36x = 249,133,405.70
  5. Step 5: Solve for x
    x = 249,133,405.70/20,556.36
  6. Step 6: Final answer
    x = 12,119.53

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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.