Home / 28,232.82-38,956.14-16,291.80

Finding the Fourth Proportional to 28,232.82, 38,956.14 and 16,291.80

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Solution

The fourth proportional to 28,232.82, 38,956.14 and 16,291.80 is: 22,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.82 : 38,956.14 = 16,291.80 : x
  2. Step 2: Convert to fraction form
    28,232.82/38,956.14 = 16,291.80/x
  3. Step 3: Cross multiply
    28,232.82x = 38,956.14 × 16,291.80
  4. Step 4: Simplify right side
    28,232.82x = 634,665,641.65
  5. Step 5: Solve for x
    x = 634,665,641.65/28,232.82
  6. Step 6: Final answer
    x = 22,479.71

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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.