Home / 39,344.70-54,295.20-21,439.25

Finding the Fourth Proportional to 39,344.70, 54,295.20 and 21,439.25

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Solution

The fourth proportional to 39,344.70, 54,295.20 and 21,439.25 is: 29,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,344.70 : 54,295.20 = 21,439.25 : x
  2. Step 2: Convert to fraction form
    39,344.70/54,295.20 = 21,439.25/x
  3. Step 3: Cross multiply
    39,344.70x = 54,295.20 × 21,439.25
  4. Step 4: Simplify right side
    39,344.70x = 1,164,048,366.60
  5. Step 5: Solve for x
    x = 1,164,048,366.60/39,344.70
  6. Step 6: Final answer
    x = 29,585.90

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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.