Home / 31,114.64-42,939.24-16,968.26

Finding the Fourth Proportional to 31,114.64, 42,939.24 and 16,968.26

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Solution

The fourth proportional to 31,114.64, 42,939.24 and 16,968.26 is: 23,416.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,114.64 : 42,939.24 = 16,968.26 : x
  2. Step 2: Convert to fraction form
    31,114.64/42,939.24 = 16,968.26/x
  3. Step 3: Cross multiply
    31,114.64x = 42,939.24 × 16,968.26
  4. Step 4: Simplify right side
    31,114.64x = 728,604,188.52
  5. Step 5: Solve for x
    x = 728,604,188.52/31,114.64
  6. Step 6: Final answer
    x = 23,416.76

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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.