Home / 21,622.80-32,433.78-8,484.36

Finding the Fourth Proportional to 21,622.80, 32,433.78 and 8,484.36

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Solution

The fourth proportional to 21,622.80, 32,433.78 and 8,484.36 is: 12,726.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.80 : 32,433.78 = 8,484.36 : x
  2. Step 2: Convert to fraction form
    21,622.80/32,433.78 = 8,484.36/x
  3. Step 3: Cross multiply
    21,622.80x = 32,433.78 × 8,484.36
  4. Step 4: Simplify right side
    21,622.80x = 275,179,865.68
  5. Step 5: Solve for x
    x = 275,179,865.68/21,622.80
  6. Step 6: Final answer
    x = 12,726.38

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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.