Home / 20,163.35-30,251.10-14,331.35

Finding the Fourth Proportional to 20,163.35, 30,251.10 and 14,331.35

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Solution

The fourth proportional to 20,163.35, 30,251.10 and 14,331.35 is: 21,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.35 : 30,251.10 = 14,331.35 : x
  2. Step 2: Convert to fraction form
    20,163.35/30,251.10 = 14,331.35/x
  3. Step 3: Cross multiply
    20,163.35x = 30,251.10 × 14,331.35
  4. Step 4: Simplify right side
    20,163.35x = 433,539,101.99
  5. Step 5: Solve for x
    x = 433,539,101.99/20,163.35
  6. Step 6: Final answer
    x = 21,501.34

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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.