Home / 20,705.41-31,032.19-16,305.49

Finding the Fourth Proportional to 20,705.41, 31,032.19 and 16,305.49

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Solution

The fourth proportional to 20,705.41, 31,032.19 and 16,305.49 is: 24,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.41 : 31,032.19 = 16,305.49 : x
  2. Step 2: Convert to fraction form
    20,705.41/31,032.19 = 16,305.49/x
  3. Step 3: Cross multiply
    20,705.41x = 31,032.19 × 16,305.49
  4. Step 4: Simplify right side
    20,705.41x = 505,995,063.72
  5. Step 5: Solve for x
    x = 505,995,063.72/20,705.41
  6. Step 6: Final answer
    x = 24,437.82

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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.