Home / 28,083.42-38,753.37-15,508.44

Finding the Fourth Proportional to 28,083.42, 38,753.37 and 15,508.44

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Solution

The fourth proportional to 28,083.42, 38,753.37 and 15,508.44 is: 21,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.42 : 38,753.37 = 15,508.44 : x
  2. Step 2: Convert to fraction form
    28,083.42/38,753.37 = 15,508.44/x
  3. Step 3: Cross multiply
    28,083.42x = 38,753.37 × 15,508.44
  4. Step 4: Simplify right side
    28,083.42x = 601,004,313.44
  5. Step 5: Solve for x
    x = 601,004,313.44/28,083.42
  6. Step 6: Final answer
    x = 21,400.68

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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.