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Finding the Fourth Proportional to 28,662.99, 43,001.84 and 11,126.89

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Solution

The fourth proportional to 28,662.99, 43,001.84 and 11,126.89 is: 16,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.99 : 43,001.84 = 11,126.89 : x
  2. Step 2: Convert to fraction form
    28,662.99/43,001.84 = 11,126.89/x
  3. Step 3: Cross multiply
    28,662.99x = 43,001.84 × 11,126.89
  4. Step 4: Simplify right side
    28,662.99x = 478,476,743.48
  5. Step 5: Solve for x
    x = 478,476,743.48/28,662.99
  6. Step 6: Final answer
    x = 16,693.19

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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.