Home / 20,385.06-30,580.42-7,234.30

Finding the Fourth Proportional to 20,385.06, 30,580.42 and 7,234.30

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Solution

The fourth proportional to 20,385.06, 30,580.42 and 7,234.30 is: 10,852.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385.06 : 30,580.42 = 7,234.30 : x
  2. Step 2: Convert to fraction form
    20,385.06/30,580.42 = 7,234.30/x
  3. Step 3: Cross multiply
    20,385.06x = 30,580.42 × 7,234.30
  4. Step 4: Simplify right side
    20,385.06x = 221,227,932.41
  5. Step 5: Solve for x
    x = 221,227,932.41/20,385.06
  6. Step 6: Final answer
    x = 10,852.46

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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.