Home / 28,667.80-43,013.82-13,887.70

Finding the Fourth Proportional to 28,667.80, 43,013.82 and 13,887.70

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Solution

The fourth proportional to 28,667.80, 43,013.82 and 13,887.70 is: 20,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,667.80 : 43,013.82 = 13,887.70 : x
  2. Step 2: Convert to fraction form
    28,667.80/43,013.82 = 13,887.70/x
  3. Step 3: Cross multiply
    28,667.80x = 43,013.82 × 13,887.70
  4. Step 4: Simplify right side
    28,667.80x = 597,363,028.01
  5. Step 5: Solve for x
    x = 597,363,028.01/28,667.80
  6. Step 6: Final answer
    x = 20,837.42

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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.