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Finding the Fourth Proportional to 21,480.35, 32,201.08 and 7,626.11

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Solution

The fourth proportional to 21,480.35, 32,201.08 and 7,626.11 is: 11,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.35 : 32,201.08 = 7,626.11 : x
  2. Step 2: Convert to fraction form
    21,480.35/32,201.08 = 7,626.11/x
  3. Step 3: Cross multiply
    21,480.35x = 32,201.08 × 7,626.11
  4. Step 4: Simplify right side
    21,480.35x = 245,568,779.06
  5. Step 5: Solve for x
    x = 245,568,779.06/21,480.35
  6. Step 6: Final answer
    x = 11,432.25

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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.