Home / 28,251.30-38,991.15-16,313.70

Finding the Fourth Proportional to 28,251.30, 38,991.15 and 16,313.70

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Solution

The fourth proportional to 28,251.30, 38,991.15 and 16,313.70 is: 22,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.30 : 38,991.15 = 16,313.70 : x
  2. Step 2: Convert to fraction form
    28,251.30/38,991.15 = 16,313.70/x
  3. Step 3: Cross multiply
    28,251.30x = 38,991.15 × 16,313.70
  4. Step 4: Simplify right side
    28,251.30x = 636,089,923.76
  5. Step 5: Solve for x
    x = 636,089,923.76/28,251.30
  6. Step 6: Final answer
    x = 22,515.42

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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.