Home / 20,602.35-30,891.20-6,556.32

Finding the Fourth Proportional to 20,602.35, 30,891.20 and 6,556.32

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Solution

The fourth proportional to 20,602.35, 30,891.20 and 6,556.32 is: 9,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,602.35 : 30,891.20 = 6,556.32 : x
  2. Step 2: Convert to fraction form
    20,602.35/30,891.20 = 6,556.32/x
  3. Step 3: Cross multiply
    20,602.35x = 30,891.20 × 6,556.32
  4. Step 4: Simplify right side
    20,602.35x = 202,532,559.60
  5. Step 5: Solve for x
    x = 202,532,559.60/20,602.35
  6. Step 6: Final answer
    x = 9,830.56

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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.