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Finding the Fourth Proportional to 37,390.92, 51,599.50 and 20,395.20

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Solution

The fourth proportional to 37,390.92, 51,599.50 and 20,395.20 is: 28,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,390.92 : 51,599.50 = 20,395.20 : x
  2. Step 2: Convert to fraction form
    37,390.92/51,599.50 = 20,395.20/x
  3. Step 3: Cross multiply
    37,390.92x = 51,599.50 × 20,395.20
  4. Step 4: Simplify right side
    37,390.92x = 1,052,382,122.40
  5. Step 5: Solve for x
    x = 1,052,382,122.40/37,390.92
  6. Step 6: Final answer
    x = 28,145.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.