Home / 21,063.38-31,599.94-11,212.16

Finding the Fourth Proportional to 21,063.38, 31,599.94 and 11,212.16

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Solution

The fourth proportional to 21,063.38, 31,599.94 and 11,212.16 is: 16,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.38 : 31,599.94 = 11,212.16 : x
  2. Step 2: Convert to fraction form
    21,063.38/31,599.94 = 11,212.16/x
  3. Step 3: Cross multiply
    21,063.38x = 31,599.94 × 11,212.16
  4. Step 4: Simplify right side
    21,063.38x = 354,303,583.27
  5. Step 5: Solve for x
    x = 354,303,583.27/21,063.38
  6. Step 6: Final answer
    x = 16,820.83

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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.