Home / 18,827.85-28,241.98-5,680.34

Finding the Fourth Proportional to 18,827.85, 28,241.98 and 5,680.34

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Solution

The fourth proportional to 18,827.85, 28,241.98 and 5,680.34 is: 8,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.85 : 28,241.98 = 5,680.34 : x
  2. Step 2: Convert to fraction form
    18,827.85/28,241.98 = 5,680.34/x
  3. Step 3: Cross multiply
    18,827.85x = 28,241.98 × 5,680.34
  4. Step 4: Simplify right side
    18,827.85x = 160,424,048.67
  5. Step 5: Solve for x
    x = 160,424,048.67/18,827.85
  6. Step 6: Final answer
    x = 8,520.57

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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.