Home / 28,435.29-42,565.44-18,553.29

Finding the Fourth Proportional to 28,435.29, 42,565.44 and 18,553.29

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Solution

The fourth proportional to 28,435.29, 42,565.44 and 18,553.29 is: 27,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.29 : 42,565.44 = 18,553.29 : x
  2. Step 2: Convert to fraction form
    28,435.29/42,565.44 = 18,553.29/x
  3. Step 3: Cross multiply
    28,435.29x = 42,565.44 × 18,553.29
  4. Step 4: Simplify right side
    28,435.29x = 789,728,952.30
  5. Step 5: Solve for x
    x = 789,728,952.30/28,435.29
  6. Step 6: Final answer
    x = 27,772.85

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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.