Home / 31,564.69-43,558.97-18,135.50

Finding the Fourth Proportional to 31,564.69, 43,558.97 and 18,135.50

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Solution

The fourth proportional to 31,564.69, 43,558.97 and 18,135.50 is: 25,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,564.69 : 43,558.97 = 18,135.50 : x
  2. Step 2: Convert to fraction form
    31,564.69/43,558.97 = 18,135.50/x
  3. Step 3: Cross multiply
    31,564.69x = 43,558.97 × 18,135.50
  4. Step 4: Simplify right side
    31,564.69x = 789,963,391.96
  5. Step 5: Solve for x
    x = 789,963,391.96/31,564.69
  6. Step 6: Final answer
    x = 25,026.81

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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.