Home / 20,156.49-30,234.70-5,365.41

Finding the Fourth Proportional to 20,156.49, 30,234.70 and 5,365.41

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Solution

The fourth proportional to 20,156.49, 30,234.70 and 5,365.41 is: 8,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.49 : 30,234.70 = 5,365.41 : x
  2. Step 2: Convert to fraction form
    20,156.49/30,234.70 = 5,365.41/x
  3. Step 3: Cross multiply
    20,156.49x = 30,234.70 × 5,365.41
  4. Step 4: Simplify right side
    20,156.49x = 162,221,561.73
  5. Step 5: Solve for x
    x = 162,221,561.73/20,156.49
  6. Step 6: Final answer
    x = 8,048.11

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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.