Home / 20,456.84-30,685.19-6,416.97

Finding the Fourth Proportional to 20,456.84, 30,685.19 and 6,416.97

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Solution

The fourth proportional to 20,456.84, 30,685.19 and 6,416.97 is: 9,625.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,456.84 : 30,685.19 = 6,416.97 : x
  2. Step 2: Convert to fraction form
    20,456.84/30,685.19 = 6,416.97/x
  3. Step 3: Cross multiply
    20,456.84x = 30,685.19 × 6,416.97
  4. Step 4: Simplify right side
    20,456.84x = 196,905,911.59
  5. Step 5: Solve for x
    x = 196,905,911.59/20,456.84
  6. Step 6: Final answer
    x = 9,625.43

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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.