Home / 21,764.88-30,035.19-12,204.72

Finding the Fourth Proportional to 21,764.88, 30,035.19 and 12,204.72

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Solution

The fourth proportional to 21,764.88, 30,035.19 and 12,204.72 is: 16,842.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,764.88 : 30,035.19 = 12,204.72 : x
  2. Step 2: Convert to fraction form
    21,764.88/30,035.19 = 12,204.72/x
  3. Step 3: Cross multiply
    21,764.88x = 30,035.19 × 12,204.72
  4. Step 4: Simplify right side
    21,764.88x = 366,571,084.10
  5. Step 5: Solve for x
    x = 366,571,084.10/21,764.88
  6. Step 6: Final answer
    x = 16,842.32

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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.