Home / 21,853.18-32,778.92-6,270.80

Finding the Fourth Proportional to 21,853.18, 32,778.92 and 6,270.80

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Solution

The fourth proportional to 21,853.18, 32,778.92 and 6,270.80 is: 9,405.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853.18 : 32,778.92 = 6,270.80 : x
  2. Step 2: Convert to fraction form
    21,853.18/32,778.92 = 6,270.80/x
  3. Step 3: Cross multiply
    21,853.18x = 32,778.92 × 6,270.80
  4. Step 4: Simplify right side
    21,853.18x = 205,550,051.54
  5. Step 5: Solve for x
    x = 205,550,051.54/21,853.18
  6. Step 6: Final answer
    x = 9,405.96

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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.