Home / 31,918.86-44,055.78-18,487.94

Finding the Fourth Proportional to 31,918.86, 44,055.78 and 18,487.94

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Solution

The fourth proportional to 31,918.86, 44,055.78 and 18,487.94 is: 25,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.86 : 44,055.78 = 18,487.94 : x
  2. Step 2: Convert to fraction form
    31,918.86/44,055.78 = 18,487.94/x
  3. Step 3: Cross multiply
    31,918.86x = 44,055.78 × 18,487.94
  4. Step 4: Simplify right side
    31,918.86x = 814,500,617.29
  5. Step 5: Solve for x
    x = 814,500,617.29/31,918.86
  6. Step 6: Final answer
    x = 25,517.85

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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.