Home / 20,168.07-27,827.95-12,211.03

Finding the Fourth Proportional to 20,168.07, 27,827.95 and 12,211.03

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Solution

The fourth proportional to 20,168.07, 27,827.95 and 12,211.03 is: 16,848.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.07 : 27,827.95 = 12,211.03 : x
  2. Step 2: Convert to fraction form
    20,168.07/27,827.95 = 12,211.03/x
  3. Step 3: Cross multiply
    20,168.07x = 27,827.95 × 12,211.03
  4. Step 4: Simplify right side
    20,168.07x = 339,807,932.29
  5. Step 5: Solve for x
    x = 339,807,932.29/20,168.07
  6. Step 6: Final answer
    x = 16,848.81

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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.