Home / 20,602.83-30,905.45-7,952.65

Finding the Fourth Proportional to 20,602.83, 30,905.45 and 7,952.65

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Solution

The fourth proportional to 20,602.83, 30,905.45 and 7,952.65 is: 11,929.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,602.83 : 30,905.45 = 7,952.65 : x
  2. Step 2: Convert to fraction form
    20,602.83/30,905.45 = 7,952.65/x
  3. Step 3: Cross multiply
    20,602.83x = 30,905.45 × 7,952.65
  4. Step 4: Simplify right side
    20,602.83x = 245,780,226.94
  5. Step 5: Solve for x
    x = 245,780,226.94/20,602.83
  6. Step 6: Final answer
    x = 11,929.44

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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.