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Finding the Fourth Proportional to 21,480.56, 32,230.01 and 11,626.82

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Solution

The fourth proportional to 21,480.56, 32,230.01 and 11,626.82 is: 17,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.56 : 32,230.01 = 11,626.82 : x
  2. Step 2: Convert to fraction form
    21,480.56/32,230.01 = 11,626.82/x
  3. Step 3: Cross multiply
    21,480.56x = 32,230.01 × 11,626.82
  4. Step 4: Simplify right side
    21,480.56x = 374,732,392.79
  5. Step 5: Solve for x
    x = 374,732,392.79/21,480.56
  6. Step 6: Final answer
    x = 17,445.19

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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.