Home / 20,447.37-30,671.01-6,408.47

Finding the Fourth Proportional to 20,447.37, 30,671.01 and 6,408.47

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Solution

The fourth proportional to 20,447.37, 30,671.01 and 6,408.47 is: 9,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.37 : 30,671.01 = 6,408.47 : x
  2. Step 2: Convert to fraction form
    20,447.37/30,671.01 = 6,408.47/x
  3. Step 3: Cross multiply
    20,447.37x = 30,671.01 × 6,408.47
  4. Step 4: Simplify right side
    20,447.37x = 196,554,215.41
  5. Step 5: Solve for x
    x = 196,554,215.41/20,447.37
  6. Step 6: Final answer
    x = 9,612.69

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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.