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Finding the Fourth Proportional to 20,295.36, 30,473.79 and 10,953.79

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Solution

The fourth proportional to 20,295.36, 30,473.79 and 10,953.79 is: 16,447.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.36 : 30,473.79 = 10,953.79 : x
  2. Step 2: Convert to fraction form
    20,295.36/30,473.79 = 10,953.79/x
  3. Step 3: Cross multiply
    20,295.36x = 30,473.79 × 10,953.79
  4. Step 4: Simplify right side
    20,295.36x = 333,803,685.59
  5. Step 5: Solve for x
    x = 333,803,685.59/20,295.36
  6. Step 6: Final answer
    x = 16,447.29

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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.