Home / 39,439.78-54,399.90-23,511.94

Finding the Fourth Proportional to 39,439.78, 54,399.90 and 23,511.94

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Solution

The fourth proportional to 39,439.78, 54,399.90 and 23,511.94 is: 32,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,439.78 : 54,399.90 = 23,511.94 : x
  2. Step 2: Convert to fraction form
    39,439.78/54,399.90 = 23,511.94/x
  3. Step 3: Cross multiply
    39,439.78x = 54,399.90 × 23,511.94
  4. Step 4: Simplify right side
    39,439.78x = 1,279,047,136.98
  5. Step 5: Solve for x
    x = 1,279,047,136.98/39,439.78
  6. Step 6: Final answer
    x = 32,430.38

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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.