Home / 20,284.61-30,429.79-6,245.80

Finding the Fourth Proportional to 20,284.61, 30,429.79 and 6,245.80

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Solution

The fourth proportional to 20,284.61, 30,429.79 and 6,245.80 is: 9,369.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.61 : 30,429.79 = 6,245.80 : x
  2. Step 2: Convert to fraction form
    20,284.61/30,429.79 = 6,245.80/x
  3. Step 3: Cross multiply
    20,284.61x = 30,429.79 × 6,245.80
  4. Step 4: Simplify right side
    20,284.61x = 190,058,366.77
  5. Step 5: Solve for x
    x = 190,058,366.77/20,284.61
  6. Step 6: Final answer
    x = 9,369.59

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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.