Home / 21,763.36-30,034.84-12,203.92

Finding the Fourth Proportional to 21,763.36, 30,034.84 and 12,203.92

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Solution

The fourth proportional to 21,763.36, 30,034.84 and 12,203.92 is: 16,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,763.36 : 30,034.84 = 12,203.92 : x
  2. Step 2: Convert to fraction form
    21,763.36/30,034.84 = 12,203.92/x
  3. Step 3: Cross multiply
    21,763.36x = 30,034.84 × 12,203.92
  4. Step 4: Simplify right side
    21,763.36x = 366,542,784.57
  5. Step 5: Solve for x
    x = 366,542,784.57/21,763.36
  6. Step 6: Final answer
    x = 16,842.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.