Home / 19,728.60-27,234.93-11,663.63

Finding the Fourth Proportional to 19,728.60, 27,234.93 and 11,663.63

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Solution

The fourth proportional to 19,728.60, 27,234.93 and 11,663.63 is: 16,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.60 : 27,234.93 = 11,663.63 : x
  2. Step 2: Convert to fraction form
    19,728.60/27,234.93 = 11,663.63/x
  3. Step 3: Cross multiply
    19,728.60x = 27,234.93 × 11,663.63
  4. Step 4: Simplify right side
    19,728.60x = 317,658,156.29
  5. Step 5: Solve for x
    x = 317,658,156.29/19,728.60
  6. Step 6: Final answer
    x = 16,101.41

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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.