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Finding the Fourth Proportional to 37,613.88, 51,905.88 and 21,697.92

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Solution

The fourth proportional to 37,613.88, 51,905.88 and 21,697.92 is: 29,942.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,613.88 : 51,905.88 = 21,697.92 : x
  2. Step 2: Convert to fraction form
    37,613.88/51,905.88 = 21,697.92/x
  3. Step 3: Cross multiply
    37,613.88x = 51,905.88 × 21,697.92
  4. Step 4: Simplify right side
    37,613.88x = 1,126,249,631.77
  5. Step 5: Solve for x
    x = 1,126,249,631.77/37,613.88
  6. Step 6: Final answer
    x = 29,942.39

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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.