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Finding the Fourth Proportional to 32,851.80, 45,335.70 and 18,705.42

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Solution

The fourth proportional to 32,851.80, 45,335.70 and 18,705.42 is: 25,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,851.80 : 45,335.70 = 18,705.42 : x
  2. Step 2: Convert to fraction form
    32,851.80/45,335.70 = 18,705.42/x
  3. Step 3: Cross multiply
    32,851.80x = 45,335.70 × 18,705.42
  4. Step 4: Simplify right side
    32,851.80x = 848,023,309.49
  5. Step 5: Solve for x
    x = 848,023,309.49/32,851.80
  6. Step 6: Final answer
    x = 25,813.60

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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.