Home / 31,238.84-43,109.94-16,898.96

Finding the Fourth Proportional to 31,238.84, 43,109.94 and 16,898.96

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Solution

The fourth proportional to 31,238.84, 43,109.94 and 16,898.96 is: 23,320.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.84 : 43,109.94 = 16,898.96 : x
  2. Step 2: Convert to fraction form
    31,238.84/43,109.94 = 16,898.96/x
  3. Step 3: Cross multiply
    31,238.84x = 43,109.94 × 16,898.96
  4. Step 4: Simplify right side
    31,238.84x = 728,512,936.11
  5. Step 5: Solve for x
    x = 728,512,936.11/31,238.84
  6. Step 6: Final answer
    x = 23,320.75

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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.