Home / 20,357.55-30,540.69-6,317.28

Finding the Fourth Proportional to 20,357.55, 30,540.69 and 6,317.28

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Solution

The fourth proportional to 20,357.55, 30,540.69 and 6,317.28 is: 9,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.55 : 30,540.69 = 6,317.28 : x
  2. Step 2: Convert to fraction form
    20,357.55/30,540.69 = 6,317.28/x
  3. Step 3: Cross multiply
    20,357.55x = 30,540.69 × 6,317.28
  4. Step 4: Simplify right side
    20,357.55x = 192,934,090.12
  5. Step 5: Solve for x
    x = 192,934,090.12/20,357.55
  6. Step 6: Final answer
    x = 9,477.27

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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.