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Finding the Fourth Proportional to 37,675.80, 51,958.80 and 28,138.79

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Solution

The fourth proportional to 37,675.80, 51,958.80 and 28,138.79 is: 38,806.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,675.80 : 51,958.80 = 28,138.79 : x
  2. Step 2: Convert to fraction form
    37,675.80/51,958.80 = 28,138.79/x
  3. Step 3: Cross multiply
    37,675.80x = 51,958.80 × 28,138.79
  4. Step 4: Simplify right side
    37,675.80x = 1,462,057,502.06
  5. Step 5: Solve for x
    x = 1,462,057,502.06/37,675.80
  6. Step 6: Final answer
    x = 38,806.28

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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.