Home / 30,213.96-45,321.83-14,420.66

Finding the Fourth Proportional to 30,213.96, 45,321.83 and 14,420.66

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Solution

The fourth proportional to 30,213.96, 45,321.83 and 14,420.66 is: 21,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.96 : 45,321.83 = 14,420.66 : x
  2. Step 2: Convert to fraction form
    30,213.96/45,321.83 = 14,420.66/x
  3. Step 3: Cross multiply
    30,213.96x = 45,321.83 × 14,420.66
  4. Step 4: Simplify right side
    30,213.96x = 653,570,474.40
  5. Step 5: Solve for x
    x = 653,570,474.40/30,213.96
  6. Step 6: Final answer
    x = 21,631.41

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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.