Home / 28,249.80-42,381.83-13,045.04

Finding the Fourth Proportional to 28,249.80, 42,381.83 and 13,045.04

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Solution

The fourth proportional to 28,249.80, 42,381.83 and 13,045.04 is: 19,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.80 : 42,381.83 = 13,045.04 : x
  2. Step 2: Convert to fraction form
    28,249.80/42,381.83 = 13,045.04/x
  3. Step 3: Cross multiply
    28,249.80x = 42,381.83 × 13,045.04
  4. Step 4: Simplify right side
    28,249.80x = 552,872,667.62
  5. Step 5: Solve for x
    x = 552,872,667.62/28,249.80
  6. Step 6: Final answer
    x = 19,570.85

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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.