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Finding the Fourth Proportional to 37,009.68, 51,078.30 and 20,880.30

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Solution

The fourth proportional to 37,009.68, 51,078.30 and 20,880.30 is: 28,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,009.68 : 51,078.30 = 20,880.30 : x
  2. Step 2: Convert to fraction form
    37,009.68/51,078.30 = 20,880.30/x
  3. Step 3: Cross multiply
    37,009.68x = 51,078.30 × 20,880.30
  4. Step 4: Simplify right side
    37,009.68x = 1,066,530,227.49
  5. Step 5: Solve for x
    x = 1,066,530,227.49/37,009.68
  6. Step 6: Final answer
    x = 28,817.60

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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.