Home / 19,880.67-27,433.58-11,927.28

Finding the Fourth Proportional to 19,880.67, 27,433.58 and 11,927.28

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Solution

The fourth proportional to 19,880.67, 27,433.58 and 11,927.28 is: 16,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.67 : 27,433.58 = 11,927.28 : x
  2. Step 2: Convert to fraction form
    19,880.67/27,433.58 = 11,927.28/x
  3. Step 3: Cross multiply
    19,880.67x = 27,433.58 × 11,927.28
  4. Step 4: Simplify right side
    19,880.67x = 327,207,930.43
  5. Step 5: Solve for x
    x = 327,207,930.43/19,880.67
  6. Step 6: Final answer
    x = 16,458.60

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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.