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Finding the Fourth Proportional to 45,295.71, 67,921.71 and 18,993.39

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Solution

The fourth proportional to 45,295.71, 67,921.71 and 18,993.39 is: 28,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,295.71 : 67,921.71 = 18,993.39 : x
  2. Step 2: Convert to fraction form
    45,295.71/67,921.71 = 18,993.39/x
  3. Step 3: Cross multiply
    45,295.71x = 67,921.71 × 18,993.39
  4. Step 4: Simplify right side
    45,295.71x = 1,290,063,527.50
  5. Step 5: Solve for x
    x = 1,290,063,527.50/45,295.71
  6. Step 6: Final answer
    x = 28,480.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.