Home / 22,638.31-33,990.78-12,662.59

Finding the Fourth Proportional to 22,638.31, 33,990.78 and 12,662.59

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Solution

The fourth proportional to 22,638.31, 33,990.78 and 12,662.59 is: 19,012.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,638.31 : 33,990.78 = 12,662.59 : x
  2. Step 2: Convert to fraction form
    22,638.31/33,990.78 = 12,662.59/x
  3. Step 3: Cross multiply
    22,638.31x = 33,990.78 × 12,662.59
  4. Step 4: Simplify right side
    22,638.31x = 430,411,310.92
  5. Step 5: Solve for x
    x = 430,411,310.92/22,638.31
  6. Step 6: Final answer
    x = 19,012.52

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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.