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Finding the Fourth Proportional to 37,863.81, 52,251.75 and 20,868.75

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Solution

The fourth proportional to 37,863.81, 52,251.75 and 20,868.75 is: 28,798.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,863.81 : 52,251.75 = 20,868.75 : x
  2. Step 2: Convert to fraction form
    37,863.81/52,251.75 = 20,868.75/x
  3. Step 3: Cross multiply
    37,863.81x = 52,251.75 × 20,868.75
  4. Step 4: Simplify right side
    37,863.81x = 1,090,428,707.81
  5. Step 5: Solve for x
    x = 1,090,428,707.81/37,863.81
  6. Step 6: Final answer
    x = 28,798.71

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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.