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Finding the Fourth Proportional to 40,003, 60,007.46 and 15,379

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Solution

The fourth proportional to 40,003, 60,007.46 and 15,379 is: 23,069.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,003 : 60,007.46 = 15,379 : x
  2. Step 2: Convert to fraction form
    40,003/60,007.46 = 15,379/x
  3. Step 3: Cross multiply
    40,003x = 60,007.46 × 15,379
  4. Step 4: Simplify right side
    40,003x = 922,854,727.34
  5. Step 5: Solve for x
    x = 922,854,727.34/40,003
  6. Step 6: Final answer
    x = 23,069.64

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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.