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Finding the Fourth Proportional to 20,015.04, 30,019.08 and 7,362

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Solution

The fourth proportional to 20,015.04, 30,019.08 and 7,362 is: 11,041.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.04 : 30,019.08 = 7,362 : x
  2. Step 2: Convert to fraction form
    20,015.04/30,019.08 = 7,362/x
  3. Step 3: Cross multiply
    20,015.04x = 30,019.08 × 7,362
  4. Step 4: Simplify right side
    20,015.04x = 221,000,466.96
  5. Step 5: Solve for x
    x = 221,000,466.96/20,015.04
  6. Step 6: Final answer
    x = 11,041.72

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Why These Related Problems?

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