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Finding the Fourth Proportional to 30,239.87, 41,730.80 and 17,492.90

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Solution

The fourth proportional to 30,239.87, 41,730.80 and 17,492.90 is: 24,140.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.87 : 41,730.80 = 17,492.90 : x
  2. Step 2: Convert to fraction form
    30,239.87/41,730.80 = 17,492.90/x
  3. Step 3: Cross multiply
    30,239.87x = 41,730.80 × 17,492.90
  4. Step 4: Simplify right side
    30,239.87x = 729,992,415.20
  5. Step 5: Solve for x
    x = 729,992,415.20/30,239.87
  6. Step 6: Final answer
    x = 24,140.07

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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.