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Finding the Fourth Proportional to 37,728, 52,108.38 and 25,130.88

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Solution

The fourth proportional to 37,728, 52,108.38 and 25,130.88 is: 34,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,728 : 52,108.38 = 25,130.88 : x
  2. Step 2: Convert to fraction form
    37,728/52,108.38 = 25,130.88/x
  3. Step 3: Cross multiply
    37,728x = 52,108.38 × 25,130.88
  4. Step 4: Simplify right side
    37,728x = 1,309,529,444.77
  5. Step 5: Solve for x
    x = 1,309,529,444.77/37,728
  6. Step 6: Final answer
    x = 34,709.75

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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.