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Finding the Fourth Proportional to 43,660, 65,490 and 15,958

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Solution

The fourth proportional to 43,660, 65,490 and 15,958 is: 23,937

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,660 : 65,490 = 15,958 : x
  2. Step 2: Convert to fraction form
    43,660/65,490 = 15,958/x
  3. Step 3: Cross multiply
    43,660x = 65,490 × 15,958
  4. Step 4: Simplify right side
    43,660x = 1,045,089,420
  5. Step 5: Solve for x
    x = 1,045,089,420/43,660
  6. Step 6: Final answer
    x = 23,937

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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.