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Finding the Fourth Proportional to 32,460.80, 48,662.40 and 21,372.80

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Solution

The fourth proportional to 32,460.80, 48,662.40 and 21,372.80 is: 32,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,460.80 : 48,662.40 = 21,372.80 : x
  2. Step 2: Convert to fraction form
    32,460.80/48,662.40 = 21,372.80/x
  3. Step 3: Cross multiply
    32,460.80x = 48,662.40 × 21,372.80
  4. Step 4: Simplify right side
    32,460.80x = 1,040,051,742.72
  5. Step 5: Solve for x
    x = 1,040,051,742.72/32,460.80
  6. Step 6: Final answer
    x = 32,040.24

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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.