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Finding the Fourth Proportional to 20,384.69, 30,574.98 and 5,595.09

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Solution

The fourth proportional to 20,384.69, 30,574.98 and 5,595.09 is: 8,392.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.69 : 30,574.98 = 5,595.09 : x
  2. Step 2: Convert to fraction form
    20,384.69/30,574.98 = 5,595.09/x
  3. Step 3: Cross multiply
    20,384.69x = 30,574.98 × 5,595.09
  4. Step 4: Simplify right side
    20,384.69x = 171,069,764.85
  5. Step 5: Solve for x
    x = 171,069,764.85/20,384.69
  6. Step 6: Final answer
    x = 8,392.07

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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.