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Finding the Fourth Proportional to 21,662.46, 32,495.82 and 9,009.60

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Solution

The fourth proportional to 21,662.46, 32,495.82 and 9,009.60 is: 13,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,662.46 : 32,495.82 = 9,009.60 : x
  2. Step 2: Convert to fraction form
    21,662.46/32,495.82 = 9,009.60/x
  3. Step 3: Cross multiply
    21,662.46x = 32,495.82 × 9,009.60
  4. Step 4: Simplify right side
    21,662.46x = 292,774,339.87
  5. Step 5: Solve for x
    x = 292,774,339.87/21,662.46
  6. Step 6: Final answer
    x = 13,515.29

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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.