Home / 28,202.71-38,921.30-16,269.79

Finding the Fourth Proportional to 28,202.71, 38,921.30 and 16,269.79

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Solution

The fourth proportional to 28,202.71, 38,921.30 and 16,269.79 is: 22,453.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.71 : 38,921.30 = 16,269.79 : x
  2. Step 2: Convert to fraction form
    28,202.71/38,921.30 = 16,269.79/x
  3. Step 3: Cross multiply
    28,202.71x = 38,921.30 × 16,269.79
  4. Step 4: Simplify right side
    28,202.71x = 633,241,377.53
  5. Step 5: Solve for x
    x = 633,241,377.53/28,202.71
  6. Step 6: Final answer
    x = 22,453.21

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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.