Home / 28,971.72-43,463.70-9,247.80

Finding the Fourth Proportional to 28,971.72, 43,463.70 and 9,247.80

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Solution

The fourth proportional to 28,971.72, 43,463.70 and 9,247.80 is: 13,873.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.72 : 43,463.70 = 9,247.80 : x
  2. Step 2: Convert to fraction form
    28,971.72/43,463.70 = 9,247.80/x
  3. Step 3: Cross multiply
    28,971.72x = 43,463.70 × 9,247.80
  4. Step 4: Simplify right side
    28,971.72x = 401,943,604.86
  5. Step 5: Solve for x
    x = 401,943,604.86/28,971.72
  6. Step 6: Final answer
    x = 13,873.65

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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.