Home / 37,218.90-55,812.15-12,249.30

Finding the Fourth Proportional to 37,218.90, 55,812.15 and 12,249.30

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Solution

The fourth proportional to 37,218.90, 55,812.15 and 12,249.30 is: 18,368.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,218.90 : 55,812.15 = 12,249.30 : x
  2. Step 2: Convert to fraction form
    37,218.90/55,812.15 = 12,249.30/x
  3. Step 3: Cross multiply
    37,218.90x = 55,812.15 × 12,249.30
  4. Step 4: Simplify right side
    37,218.90x = 683,659,769.00
  5. Step 5: Solve for x
    x = 683,659,769.00/37,218.90
  6. Step 6: Final answer
    x = 18,368.62

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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.