Home / 28,221.88-38,944.68-16,284.52

Finding the Fourth Proportional to 28,221.88, 38,944.68 and 16,284.52

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Solution

The fourth proportional to 28,221.88, 38,944.68 and 16,284.52 is: 22,471.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,221.88 : 38,944.68 = 16,284.52 : x
  2. Step 2: Convert to fraction form
    28,221.88/38,944.68 = 16,284.52/x
  3. Step 3: Cross multiply
    28,221.88x = 38,944.68 × 16,284.52
  4. Step 4: Simplify right side
    28,221.88x = 634,195,420.35
  5. Step 5: Solve for x
    x = 634,195,420.35/28,221.88
  6. Step 6: Final answer
    x = 22,471.76

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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.