Home / 39,481.82-54,484.95-21,576.83

Finding the Fourth Proportional to 39,481.82, 54,484.95 and 21,576.83

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Solution

The fourth proportional to 39,481.82, 54,484.95 and 21,576.83 is: 29,776.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,481.82 : 54,484.95 = 21,576.83 : x
  2. Step 2: Convert to fraction form
    39,481.82/54,484.95 = 21,576.83/x
  3. Step 3: Cross multiply
    39,481.82x = 54,484.95 × 21,576.83
  4. Step 4: Simplify right side
    39,481.82x = 1,175,612,639.92
  5. Step 5: Solve for x
    x = 1,175,612,639.92/39,481.82
  6. Step 6: Final answer
    x = 29,776.05

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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.