Home / 39,576.60-54,615.74-21,671.62

Finding the Fourth Proportional to 39,576.60, 54,615.74 and 21,671.62

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Solution

The fourth proportional to 39,576.60, 54,615.74 and 21,671.62 is: 29,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,576.60 : 54,615.74 = 21,671.62 : x
  2. Step 2: Convert to fraction form
    39,576.60/54,615.74 = 21,671.62/x
  3. Step 3: Cross multiply
    39,576.60x = 54,615.74 × 21,671.62
  4. Step 4: Simplify right side
    39,576.60x = 1,183,611,318.40
  5. Step 5: Solve for x
    x = 1,183,611,318.40/39,576.60
  6. Step 6: Final answer
    x = 29,906.85

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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.