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Finding the Fourth Proportional to 37,670.88, 51,983.49 and 20,671.68

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Solution

The fourth proportional to 37,670.88, 51,983.49 and 20,671.68 is: 28,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,670.88 : 51,983.49 = 20,671.68 : x
  2. Step 2: Convert to fraction form
    37,670.88/51,983.49 = 20,671.68/x
  3. Step 3: Cross multiply
    37,670.88x = 51,983.49 × 20,671.68
  4. Step 4: Simplify right side
    37,670.88x = 1,074,586,070.56
  5. Step 5: Solve for x
    x = 1,074,586,070.56/37,670.88
  6. Step 6: Final answer
    x = 28,525.64

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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.