Home / 39,136.94-54,008.21-22,140.51

Finding the Fourth Proportional to 39,136.94, 54,008.21 and 22,140.51

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Solution

The fourth proportional to 39,136.94, 54,008.21 and 22,140.51 is: 30,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,136.94 : 54,008.21 = 22,140.51 : x
  2. Step 2: Convert to fraction form
    39,136.94/54,008.21 = 22,140.51/x
  3. Step 3: Cross multiply
    39,136.94x = 54,008.21 × 22,140.51
  4. Step 4: Simplify right side
    39,136.94x = 1,195,769,043.55
  5. Step 5: Solve for x
    x = 1,195,769,043.55/39,136.94
  6. Step 6: Final answer
    x = 30,553.47

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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.