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Finding the Fourth Proportional to 37,576.50, 51,857.20 and 20,809.50

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Solution

The fourth proportional to 37,576.50, 51,857.20 and 20,809.50 is: 28,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,576.50 : 51,857.20 = 20,809.50 : x
  2. Step 2: Convert to fraction form
    37,576.50/51,857.20 = 20,809.50/x
  3. Step 3: Cross multiply
    37,576.50x = 51,857.20 × 20,809.50
  4. Step 4: Simplify right side
    37,576.50x = 1,079,122,403.40
  5. Step 5: Solve for x
    x = 1,079,122,403.40/37,576.50
  6. Step 6: Final answer
    x = 28,718.01

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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.