Home / 18,828.09-28,242.33-5,680.57

Finding the Fourth Proportional to 18,828.09, 28,242.33 and 5,680.57

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Solution

The fourth proportional to 18,828.09, 28,242.33 and 5,680.57 is: 8,520.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.09 : 28,242.33 = 5,680.57 : x
  2. Step 2: Convert to fraction form
    18,828.09/28,242.33 = 5,680.57/x
  3. Step 3: Cross multiply
    18,828.09x = 28,242.33 × 5,680.57
  4. Step 4: Simplify right side
    18,828.09x = 160,432,532.53
  5. Step 5: Solve for x
    x = 160,432,532.53/18,828.09
  6. Step 6: Final answer
    x = 8,520.91

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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.