Home / 28,197.90-42,300.50-9,469.89

Finding the Fourth Proportional to 28,197.90, 42,300.50 and 9,469.89

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Solution

The fourth proportional to 28,197.90, 42,300.50 and 9,469.89 is: 14,206.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.90 : 42,300.50 = 9,469.89 : x
  2. Step 2: Convert to fraction form
    28,197.90/42,300.50 = 9,469.89/x
  3. Step 3: Cross multiply
    28,197.90x = 42,300.50 × 9,469.89
  4. Step 4: Simplify right side
    28,197.90x = 400,581,034.60
  5. Step 5: Solve for x
    x = 400,581,034.60/28,197.90
  6. Step 6: Final answer
    x = 14,206.06

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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.