Home / 20,278.98-30,423.15-8,592.66

Finding the Fourth Proportional to 20,278.98, 30,423.15 and 8,592.66

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Solution

The fourth proportional to 20,278.98, 30,423.15 and 8,592.66 is: 12,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278.98 : 30,423.15 = 8,592.66 : x
  2. Step 2: Convert to fraction form
    20,278.98/30,423.15 = 8,592.66/x
  3. Step 3: Cross multiply
    20,278.98x = 30,423.15 × 8,592.66
  4. Step 4: Simplify right side
    20,278.98x = 261,415,784.08
  5. Step 5: Solve for x
    x = 261,415,784.08/20,278.98
  6. Step 6: Final answer
    x = 12,890.97

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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.