Home / 21,958.41-30,302.62-11,886.94

Finding the Fourth Proportional to 21,958.41, 30,302.62 and 11,886.94

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Solution

The fourth proportional to 21,958.41, 30,302.62 and 11,886.94 is: 16,403.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.41 : 30,302.62 = 11,886.94 : x
  2. Step 2: Convert to fraction form
    21,958.41/30,302.62 = 11,886.94/x
  3. Step 3: Cross multiply
    21,958.41x = 30,302.62 × 11,886.94
  4. Step 4: Simplify right side
    21,958.41x = 360,205,330.36
  5. Step 5: Solve for x
    x = 360,205,330.36/21,958.41
  6. Step 6: Final answer
    x = 16,403.98

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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.