Home / 30,149.70-41,606.82-16,720.20

Finding the Fourth Proportional to 30,149.70, 41,606.82 and 16,720.20

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Solution

The fourth proportional to 30,149.70, 41,606.82 and 16,720.20 is: 23,074.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.70 : 41,606.82 = 16,720.20 : x
  2. Step 2: Convert to fraction form
    30,149.70/41,606.82 = 16,720.20/x
  3. Step 3: Cross multiply
    30,149.70x = 41,606.82 × 16,720.20
  4. Step 4: Simplify right side
    30,149.70x = 695,674,351.76
  5. Step 5: Solve for x
    x = 695,674,351.76/30,149.70
  6. Step 6: Final answer
    x = 23,074.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.