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Finding the Fourth Proportional to 37,280.68, 55,919.19 and 13,905.30

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Solution

The fourth proportional to 37,280.68, 55,919.19 and 13,905.30 is: 20,857.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,280.68 : 55,919.19 = 13,905.30 : x
  2. Step 2: Convert to fraction form
    37,280.68/55,919.19 = 13,905.30/x
  3. Step 3: Cross multiply
    37,280.68x = 55,919.19 × 13,905.30
  4. Step 4: Simplify right side
    37,280.68x = 777,573,112.71
  5. Step 5: Solve for x
    x = 777,573,112.71/37,280.68
  6. Step 6: Final answer
    x = 20,857.27

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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.