Home / 21,503.88-32,171.99-18,850.32

Finding the Fourth Proportional to 21,503.88, 32,171.99 and 18,850.32

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Solution

The fourth proportional to 21,503.88, 32,171.99 and 18,850.32 is: 28,201.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.88 : 32,171.99 = 18,850.32 : x
  2. Step 2: Convert to fraction form
    21,503.88/32,171.99 = 18,850.32/x
  3. Step 3: Cross multiply
    21,503.88x = 32,171.99 × 18,850.32
  4. Step 4: Simplify right side
    21,503.88x = 606,452,212.29
  5. Step 5: Solve for x
    x = 606,452,212.29/21,503.88
  6. Step 6: Final answer
    x = 28,201.99

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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.