Home / 21,003.63-28,984.89-11,444.09

Finding the Fourth Proportional to 21,003.63, 28,984.89 and 11,444.09

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Solution

The fourth proportional to 21,003.63, 28,984.89 and 11,444.09 is: 15,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.63 : 28,984.89 = 11,444.09 : x
  2. Step 2: Convert to fraction form
    21,003.63/28,984.89 = 11,444.09/x
  3. Step 3: Cross multiply
    21,003.63x = 28,984.89 × 11,444.09
  4. Step 4: Simplify right side
    21,003.63x = 331,705,523.42
  5. Step 5: Solve for x
    x = 331,705,523.42/21,003.63
  6. Step 6: Final answer
    x = 15,792.77

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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.