Home / 31,118.44-42,942.98-16,971.26

Finding the Fourth Proportional to 31,118.44, 42,942.98 and 16,971.26

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Solution

The fourth proportional to 31,118.44, 42,942.98 and 16,971.26 is: 23,420.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,118.44 : 42,942.98 = 16,971.26 : x
  2. Step 2: Convert to fraction form
    31,118.44/42,942.98 = 16,971.26/x
  3. Step 3: Cross multiply
    31,118.44x = 42,942.98 × 16,971.26
  4. Step 4: Simplify right side
    31,118.44x = 728,796,478.75
  5. Step 5: Solve for x
    x = 728,796,478.75/31,118.44
  6. Step 6: Final answer
    x = 23,420.08

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1.5x scale

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.