Home / 39,171.45-54,056.43-21,266.31

Finding the Fourth Proportional to 39,171.45, 54,056.43 and 21,266.31

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Solution

The fourth proportional to 39,171.45, 54,056.43 and 21,266.31 is: 29,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.45 : 54,056.43 = 21,266.31 : x
  2. Step 2: Convert to fraction form
    39,171.45/54,056.43 = 21,266.31/x
  3. Step 3: Cross multiply
    39,171.45x = 54,056.43 × 21,266.31
  4. Step 4: Simplify right side
    39,171.45x = 1,149,580,797.87
  5. Step 5: Solve for x
    x = 1,149,580,797.87/39,171.45
  6. Step 6: Final answer
    x = 29,347.41

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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.