Home / 20,460.26-30,693.42-6,421.44

Finding the Fourth Proportional to 20,460.26, 30,693.42 and 6,421.44

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Solution

The fourth proportional to 20,460.26, 30,693.42 and 6,421.44 is: 9,633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.26 : 30,693.42 = 6,421.44 : x
  2. Step 2: Convert to fraction form
    20,460.26/30,693.42 = 6,421.44/x
  3. Step 3: Cross multiply
    20,460.26x = 30,693.42 × 6,421.44
  4. Step 4: Simplify right side
    20,460.26x = 197,095,954.92
  5. Step 5: Solve for x
    x = 197,095,954.92/20,460.26
  6. Step 6: Final answer
    x = 9,633.11

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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.