Home / 19,872.54-27,391.16-19,346.66

Finding the Fourth Proportional to 19,872.54, 27,391.16 and 19,346.66

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Solution

The fourth proportional to 19,872.54, 27,391.16 and 19,346.66 is: 26,666.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.54 : 27,391.16 = 19,346.66 : x
  2. Step 2: Convert to fraction form
    19,872.54/27,391.16 = 19,346.66/x
  3. Step 3: Cross multiply
    19,872.54x = 27,391.16 × 19,346.66
  4. Step 4: Simplify right side
    19,872.54x = 529,927,627.73
  5. Step 5: Solve for x
    x = 529,927,627.73/19,872.54
  6. Step 6: Final answer
    x = 26,666.33

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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.