Home / 39,443.58-54,431.46-21,536.91

Finding the Fourth Proportional to 39,443.58, 54,431.46 and 21,536.91

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Solution

The fourth proportional to 39,443.58, 54,431.46 and 21,536.91 is: 29,720.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,443.58 : 54,431.46 = 21,536.91 : x
  2. Step 2: Convert to fraction form
    39,443.58/54,431.46 = 21,536.91/x
  3. Step 3: Cross multiply
    39,443.58x = 54,431.46 × 21,536.91
  4. Step 4: Simplify right side
    39,443.58x = 1,172,285,455.19
  5. Step 5: Solve for x
    x = 1,172,285,455.19/39,443.58
  6. Step 6: Final answer
    x = 29,720.56

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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.