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Finding the Fourth Proportional to 19,959.77, 29,933.57 and 8,270.25

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Solution

The fourth proportional to 19,959.77, 29,933.57 and 8,270.25 is: 12,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.77 : 29,933.57 = 8,270.25 : x
  2. Step 2: Convert to fraction form
    19,959.77/29,933.57 = 8,270.25/x
  3. Step 3: Cross multiply
    19,959.77x = 29,933.57 × 8,270.25
  4. Step 4: Simplify right side
    19,959.77x = 247,558,065.94
  5. Step 5: Solve for x
    x = 247,558,065.94/19,959.77
  6. Step 6: Final answer
    x = 12,402.85

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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.