Home / 20,514.94-30,784.51-8,667.95

Finding the Fourth Proportional to 20,514.94, 30,784.51 and 8,667.95

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Solution

The fourth proportional to 20,514.94, 30,784.51 and 8,667.95 is: 13,007.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.94 : 30,784.51 = 8,667.95 : x
  2. Step 2: Convert to fraction form
    20,514.94/30,784.51 = 8,667.95/x
  3. Step 3: Cross multiply
    20,514.94x = 30,784.51 × 8,667.95
  4. Step 4: Simplify right side
    20,514.94x = 266,838,401.61
  5. Step 5: Solve for x
    x = 266,838,401.61/20,514.94
  6. Step 6: Final answer
    x = 13,007.03

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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.