Home / 20,309.81-30,468.15-6,269.54

Finding the Fourth Proportional to 20,309.81, 30,468.15 and 6,269.54

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Solution

The fourth proportional to 20,309.81, 30,468.15 and 6,269.54 is: 9,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,309.81 : 30,468.15 = 6,269.54 : x
  2. Step 2: Convert to fraction form
    20,309.81/30,468.15 = 6,269.54/x
  3. Step 3: Cross multiply
    20,309.81x = 30,468.15 × 6,269.54
  4. Step 4: Simplify right side
    20,309.81x = 191,021,132.81
  5. Step 5: Solve for x
    x = 191,021,132.81/20,309.81
  6. Step 6: Final answer
    x = 9,405.37

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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.