Home / 31,942.92-44,085.60-18,518.40

Finding the Fourth Proportional to 31,942.92, 44,085.60 and 18,518.40

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Solution

The fourth proportional to 31,942.92, 44,085.60 and 18,518.40 is: 25,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,942.92 : 44,085.60 = 18,518.40 : x
  2. Step 2: Convert to fraction form
    31,942.92/44,085.60 = 18,518.40/x
  3. Step 3: Cross multiply
    31,942.92x = 44,085.60 × 18,518.40
  4. Step 4: Simplify right side
    31,942.92x = 816,394,775.04
  5. Step 5: Solve for x
    x = 816,394,775.04/31,942.92
  6. Step 6: Final answer
    x = 25,557.93

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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.