Home / 29,686.53-40,972.04-16,939.69

Finding the Fourth Proportional to 29,686.53, 40,972.04 and 16,939.69

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Solution

The fourth proportional to 29,686.53, 40,972.04 and 16,939.69 is: 23,379.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,686.53 : 40,972.04 = 16,939.69 : x
  2. Step 2: Convert to fraction form
    29,686.53/40,972.04 = 16,939.69/x
  3. Step 3: Cross multiply
    29,686.53x = 40,972.04 × 16,939.69
  4. Step 4: Simplify right side
    29,686.53x = 694,053,656.27
  5. Step 5: Solve for x
    x = 694,053,656.27/29,686.53
  6. Step 6: Final answer
    x = 23,379.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.