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Finding the Fourth Proportional to 32,428.60, 48,642.90 and 18,566.20

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Solution

The fourth proportional to 32,428.60, 48,642.90 and 18,566.20 is: 27,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,428.60 : 48,642.90 = 18,566.20 : x
  2. Step 2: Convert to fraction form
    32,428.60/48,642.90 = 18,566.20/x
  3. Step 3: Cross multiply
    32,428.60x = 48,642.90 × 18,566.20
  4. Step 4: Simplify right side
    32,428.60x = 903,113,809.98
  5. Step 5: Solve for x
    x = 903,113,809.98/32,428.60
  6. Step 6: Final answer
    x = 27,849.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.