Home / 20,448.37-30,672.51-6,409.47

Finding the Fourth Proportional to 20,448.37, 30,672.51 and 6,409.47

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Solution

The fourth proportional to 20,448.37, 30,672.51 and 6,409.47 is: 9,614.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.37 : 30,672.51 = 6,409.47 : x
  2. Step 2: Convert to fraction form
    20,448.37/30,672.51 = 6,409.47/x
  3. Step 3: Cross multiply
    20,448.37x = 30,672.51 × 6,409.47
  4. Step 4: Simplify right side
    20,448.37x = 196,594,500.62
  5. Step 5: Solve for x
    x = 196,594,500.62/20,448.37
  6. Step 6: Final answer
    x = 9,614.19

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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.