Home / 39,505.72-54,485.38-28,171.58

Finding the Fourth Proportional to 39,505.72, 54,485.38 and 28,171.58

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Solution

The fourth proportional to 39,505.72, 54,485.38 and 28,171.58 is: 38,853.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,505.72 : 54,485.38 = 28,171.58 : x
  2. Step 2: Convert to fraction form
    39,505.72/54,485.38 = 28,171.58/x
  3. Step 3: Cross multiply
    39,505.72x = 54,485.38 × 28,171.58
  4. Step 4: Simplify right side
    39,505.72x = 1,534,939,241.50
  5. Step 5: Solve for x
    x = 1,534,939,241.50/39,505.72
  6. Step 6: Final answer
    x = 38,853.59

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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.