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Finding the Fourth Proportional to 37,220.40, 55,814.40 and 12,250.80

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Solution

The fourth proportional to 37,220.40, 55,814.40 and 12,250.80 is: 18,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,220.40 : 55,814.40 = 12,250.80 : x
  2. Step 2: Convert to fraction form
    37,220.40/55,814.40 = 12,250.80/x
  3. Step 3: Cross multiply
    37,220.40x = 55,814.40 × 12,250.80
  4. Step 4: Simplify right side
    37,220.40x = 683,771,051.52
  5. Step 5: Solve for x
    x = 683,771,051.52/37,220.40
  6. Step 6: Final answer
    x = 18,370.87

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1.5x scale

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.