Home / 28,443.58-39,244.26-18,372.44

Finding the Fourth Proportional to 28,443.58, 39,244.26 and 18,372.44

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Solution

The fourth proportional to 28,443.58, 39,244.26 and 18,372.44 is: 25,348.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.58 : 39,244.26 = 18,372.44 : x
  2. Step 2: Convert to fraction form
    28,443.58/39,244.26 = 18,372.44/x
  3. Step 3: Cross multiply
    28,443.58x = 39,244.26 × 18,372.44
  4. Step 4: Simplify right side
    28,443.58x = 721,012,979.20
  5. Step 5: Solve for x
    x = 721,012,979.20/28,443.58
  6. Step 6: Final answer
    x = 25,348.89

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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.