Home / 28,226.96-42,331.79-19,517.84

Finding the Fourth Proportional to 28,226.96, 42,331.79 and 19,517.84

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Solution

The fourth proportional to 28,226.96, 42,331.79 and 19,517.84 is: 29,270.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.96 : 42,331.79 = 19,517.84 : x
  2. Step 2: Convert to fraction form
    28,226.96/42,331.79 = 19,517.84/x
  3. Step 3: Cross multiply
    28,226.96x = 42,331.79 × 19,517.84
  4. Step 4: Simplify right side
    28,226.96x = 826,224,794.89
  5. Step 5: Solve for x
    x = 826,224,794.89/28,226.96
  6. Step 6: Final answer
    x = 29,270.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.