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Finding the Fourth Proportional to 37,499.70, 51,747.47 and 20,500.78

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Solution

The fourth proportional to 37,499.70, 51,747.47 and 20,500.78 is: 28,289.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,499.70 : 51,747.47 = 20,500.78 : x
  2. Step 2: Convert to fraction form
    37,499.70/51,747.47 = 20,500.78/x
  3. Step 3: Cross multiply
    37,499.70x = 51,747.47 × 20,500.78
  4. Step 4: Simplify right side
    37,499.70x = 1,060,863,395.52
  5. Step 5: Solve for x
    x = 1,060,863,395.52/37,499.70
  6. Step 6: Final answer
    x = 28,289.92

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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.