Home / 19,889.12-27,440.16-12,332.73

Finding the Fourth Proportional to 19,889.12, 27,440.16 and 12,332.73

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Solution

The fourth proportional to 19,889.12, 27,440.16 and 12,332.73 is: 17,014.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,889.12 : 27,440.16 = 12,332.73 : x
  2. Step 2: Convert to fraction form
    19,889.12/27,440.16 = 12,332.73/x
  3. Step 3: Cross multiply
    19,889.12x = 27,440.16 × 12,332.73
  4. Step 4: Simplify right side
    19,889.12x = 338,412,091.37
  5. Step 5: Solve for x
    x = 338,412,091.37/19,889.12
  6. Step 6: Final answer
    x = 17,014.93

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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.