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Finding the Fourth Proportional to 19,327.87, 28,992.08 and 5,476.87

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Solution

The fourth proportional to 19,327.87, 28,992.08 and 5,476.87 is: 8,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,327.87 : 28,992.08 = 5,476.87 : x
  2. Step 2: Convert to fraction form
    19,327.87/28,992.08 = 5,476.87/x
  3. Step 3: Cross multiply
    19,327.87x = 28,992.08 × 5,476.87
  4. Step 4: Simplify right side
    19,327.87x = 158,785,853.19
  5. Step 5: Solve for x
    x = 158,785,853.19/19,327.87
  6. Step 6: Final answer
    x = 8,215.38

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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.