Home / 28,667.14-43,000.72-8,945.71

Finding the Fourth Proportional to 28,667.14, 43,000.72 and 8,945.71

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Solution

The fourth proportional to 28,667.14, 43,000.72 and 8,945.71 is: 13,418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,667.14 : 43,000.72 = 8,945.71 : x
  2. Step 2: Convert to fraction form
    28,667.14/43,000.72 = 8,945.71/x
  3. Step 3: Cross multiply
    28,667.14x = 43,000.72 × 8,945.71
  4. Step 4: Simplify right side
    28,667.14x = 384,671,841.05
  5. Step 5: Solve for x
    x = 384,671,841.05/28,667.14
  6. Step 6: Final answer
    x = 13,418.56

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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.