Home / 28,249.46-38,991.31-16,319.72

Finding the Fourth Proportional to 28,249.46, 38,991.31 and 16,319.72

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Solution

The fourth proportional to 28,249.46, 38,991.31 and 16,319.72 is: 22,525.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.46 : 38,991.31 = 16,319.72 : x
  2. Step 2: Convert to fraction form
    28,249.46/38,991.31 = 16,319.72/x
  3. Step 3: Cross multiply
    28,249.46x = 38,991.31 × 16,319.72
  4. Step 4: Simplify right side
    28,249.46x = 636,327,133.10
  5. Step 5: Solve for x
    x = 636,327,133.10/28,249.46
  6. Step 6: Final answer
    x = 22,525.28

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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.