Home / 28,410.31-39,204.45-15,662.83

Finding the Fourth Proportional to 28,410.31, 39,204.45 and 15,662.83

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Solution

The fourth proportional to 28,410.31, 39,204.45 and 15,662.83 is: 21,613.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.31 : 39,204.45 = 15,662.83 : x
  2. Step 2: Convert to fraction form
    28,410.31/39,204.45 = 15,662.83/x
  3. Step 3: Cross multiply
    28,410.31x = 39,204.45 × 15,662.83
  4. Step 4: Simplify right side
    28,410.31x = 614,052,635.59
  5. Step 5: Solve for x
    x = 614,052,635.59/28,410.31
  6. Step 6: Final answer
    x = 21,613.73

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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.