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Finding the Fourth Proportional to 32,880.40, 45,374.04 and 18,540.10

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Solution

The fourth proportional to 32,880.40, 45,374.04 and 18,540.10 is: 25,584.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,880.40 : 45,374.04 = 18,540.10 : x
  2. Step 2: Convert to fraction form
    32,880.40/45,374.04 = 18,540.10/x
  3. Step 3: Cross multiply
    32,880.40x = 45,374.04 × 18,540.10
  4. Step 4: Simplify right side
    32,880.40x = 841,239,239.00
  5. Step 5: Solve for x
    x = 841,239,239.00/32,880.40
  6. Step 6: Final answer
    x = 25,584.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.