Home / 18,768.38-28,128.33-14,051.34

Finding the Fourth Proportional to 18,768.38, 28,128.33 and 14,051.34

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Solution

The fourth proportional to 18,768.38, 28,128.33 and 14,051.34 is: 21,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.38 : 28,128.33 = 14,051.34 : x
  2. Step 2: Convert to fraction form
    18,768.38/28,128.33 = 14,051.34/x
  3. Step 3: Cross multiply
    18,768.38x = 28,128.33 × 14,051.34
  4. Step 4: Simplify right side
    18,768.38x = 395,240,728.46
  5. Step 5: Solve for x
    x = 395,240,728.46/18,768.38
  6. Step 6: Final answer
    x = 21,058.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.