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Finding the Fourth Proportional to 32,855.40, 45,344.66 and 21,534.48

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Solution

The fourth proportional to 32,855.40, 45,344.66 and 21,534.48 is: 29,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,855.40 : 45,344.66 = 21,534.48 : x
  2. Step 2: Convert to fraction form
    32,855.40/45,344.66 = 21,534.48/x
  3. Step 3: Cross multiply
    32,855.40x = 45,344.66 × 21,534.48
  4. Step 4: Simplify right side
    32,855.40x = 976,473,566.20
  5. Step 5: Solve for x
    x = 976,473,566.20/32,855.40
  6. Step 6: Final answer
    x = 29,720.34

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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.