Home / 20,219.32-30,355.73-17,276.63

Finding the Fourth Proportional to 20,219.32, 30,355.73 and 17,276.63

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Solution

The fourth proportional to 20,219.32, 30,355.73 and 17,276.63 is: 25,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.32 : 30,355.73 = 17,276.63 : x
  2. Step 2: Convert to fraction form
    20,219.32/30,355.73 = 17,276.63/x
  3. Step 3: Cross multiply
    20,219.32x = 30,355.73 × 17,276.63
  4. Step 4: Simplify right side
    20,219.32x = 524,444,542.22
  5. Step 5: Solve for x
    x = 524,444,542.22/20,219.32
  6. Step 6: Final answer
    x = 25,937.79

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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.