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Finding the Fourth Proportional to 20,154.61, 30,227.05 and 6,303.61

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Solution

The fourth proportional to 20,154.61, 30,227.05 and 6,303.61 is: 9,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.61 : 30,227.05 = 6,303.61 : x
  2. Step 2: Convert to fraction form
    20,154.61/30,227.05 = 6,303.61/x
  3. Step 3: Cross multiply
    20,154.61x = 30,227.05 × 6,303.61
  4. Step 4: Simplify right side
    20,154.61x = 190,539,534.65
  5. Step 5: Solve for x
    x = 190,539,534.65/20,154.61
  6. Step 6: Final answer
    x = 9,453.89

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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.