Home / 39,305.76-54,239.22-22,310.34

Finding the Fourth Proportional to 39,305.76, 54,239.22 and 22,310.34

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Solution

The fourth proportional to 39,305.76, 54,239.22 and 22,310.34 is: 30,786.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,305.76 : 54,239.22 = 22,310.34 : x
  2. Step 2: Convert to fraction form
    39,305.76/54,239.22 = 22,310.34/x
  3. Step 3: Cross multiply
    39,305.76x = 54,239.22 × 22,310.34
  4. Step 4: Simplify right side
    39,305.76x = 1,210,095,236.14
  5. Step 5: Solve for x
    x = 1,210,095,236.14/39,305.76
  6. Step 6: Final answer
    x = 30,786.72

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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.