Home / 18,986.42-28,482.35-5,839.89

Finding the Fourth Proportional to 18,986.42, 28,482.35 and 5,839.89

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Solution

The fourth proportional to 18,986.42, 28,482.35 and 5,839.89 is: 8,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.42 : 28,482.35 = 5,839.89 : x
  2. Step 2: Convert to fraction form
    18,986.42/28,482.35 = 5,839.89/x
  3. Step 3: Cross multiply
    18,986.42x = 28,482.35 × 5,839.89
  4. Step 4: Simplify right side
    18,986.42x = 166,333,761.74
  5. Step 5: Solve for x
    x = 166,333,761.74/18,986.42
  6. Step 6: Final answer
    x = 8,760.67

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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.