Home / 19,171.38-28,730.50-14,487.56

Finding the Fourth Proportional to 19,171.38, 28,730.50 and 14,487.56

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Solution

The fourth proportional to 19,171.38, 28,730.50 and 14,487.56 is: 21,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.38 : 28,730.50 = 14,487.56 : x
  2. Step 2: Convert to fraction form
    19,171.38/28,730.50 = 14,487.56/x
  3. Step 3: Cross multiply
    19,171.38x = 28,730.50 × 14,487.56
  4. Step 4: Simplify right side
    19,171.38x = 416,234,770.45
  5. Step 5: Solve for x
    x = 416,234,770.45/19,171.38
  6. Step 6: Final answer
    x = 21,711.25

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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.