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Finding the Fourth Proportional to 37,220.79, 55,819.19 and 12,254.89

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Solution

The fourth proportional to 37,220.79, 55,819.19 and 12,254.89 is: 18,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,220.79 : 55,819.19 = 12,254.89 : x
  2. Step 2: Convert to fraction form
    37,220.79/55,819.19 = 12,254.89/x
  3. Step 3: Cross multiply
    37,220.79x = 55,819.19 × 12,254.89
  4. Step 4: Simplify right side
    37,220.79x = 684,057,972.06
  5. Step 5: Solve for x
    x = 684,057,972.06/37,220.79
  6. Step 6: Final answer
    x = 18,378.38

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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.