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Finding the Fourth Proportional to 20,018.12, 27,627.54 and 11,633

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Solution

The fourth proportional to 20,018.12, 27,627.54 and 11,633 is: 16,055.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.12 : 27,627.54 = 11,633 : x
  2. Step 2: Convert to fraction form
    20,018.12/27,627.54 = 11,633/x
  3. Step 3: Cross multiply
    20,018.12x = 27,627.54 × 11,633
  4. Step 4: Simplify right side
    20,018.12x = 321,391,172.82
  5. Step 5: Solve for x
    x = 321,391,172.82/20,018.12
  6. Step 6: Final answer
    x = 16,055.01

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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.