Home / 28,785.38-39,726.32-16,212.56

Finding the Fourth Proportional to 28,785.38, 39,726.32 and 16,212.56

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Solution

The fourth proportional to 28,785.38, 39,726.32 and 16,212.56 is: 22,374.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.38 : 39,726.32 = 16,212.56 : x
  2. Step 2: Convert to fraction form
    28,785.38/39,726.32 = 16,212.56/x
  3. Step 3: Cross multiply
    28,785.38x = 39,726.32 × 16,212.56
  4. Step 4: Simplify right side
    28,785.38x = 644,065,066.88
  5. Step 5: Solve for x
    x = 644,065,066.88/28,785.38
  6. Step 6: Final answer
    x = 22,374.73

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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.