Home / 31,533.06-43,703.46-30,942.57

Finding the Fourth Proportional to 31,533.06, 43,703.46 and 30,942.57

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Solution

The fourth proportional to 31,533.06, 43,703.46 and 30,942.57 is: 42,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,533.06 : 43,703.46 = 30,942.57 : x
  2. Step 2: Convert to fraction form
    31,533.06/43,703.46 = 30,942.57/x
  3. Step 3: Cross multiply
    31,533.06x = 43,703.46 × 30,942.57
  4. Step 4: Simplify right side
    31,533.06x = 1,352,297,370.29
  5. Step 5: Solve for x
    x = 1,352,297,370.29/31,533.06
  6. Step 6: Final answer
    x = 42,885.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.