Home / 20,330.70-30,496.05-14,109.90

Finding the Fourth Proportional to 20,330.70, 30,496.05 and 14,109.90

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Solution

The fourth proportional to 20,330.70, 30,496.05 and 14,109.90 is: 21,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.70 : 30,496.05 = 14,109.90 : x
  2. Step 2: Convert to fraction form
    20,330.70/30,496.05 = 14,109.90/x
  3. Step 3: Cross multiply
    20,330.70x = 30,496.05 × 14,109.90
  4. Step 4: Simplify right side
    20,330.70x = 430,296,215.90
  5. Step 5: Solve for x
    x = 430,296,215.90/20,330.70
  6. Step 6: Final answer
    x = 21,164.85

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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.