Home / 20,019.48-30,014.58-9,638.52

Finding the Fourth Proportional to 20,019.48, 30,014.58 and 9,638.52

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Solution

The fourth proportional to 20,019.48, 30,014.58 and 9,638.52 is: 14,450.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.48 : 30,014.58 = 9,638.52 : x
  2. Step 2: Convert to fraction form
    20,019.48/30,014.58 = 9,638.52/x
  3. Step 3: Cross multiply
    20,019.48x = 30,014.58 × 9,638.52
  4. Step 4: Simplify right side
    20,019.48x = 289,296,129.62
  5. Step 5: Solve for x
    x = 289,296,129.62/20,019.48
  6. Step 6: Final answer
    x = 14,450.73

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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.