Home / 20,917.42-31,376.21-14,705.24

Finding the Fourth Proportional to 20,917.42, 31,376.21 and 14,705.24

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Solution

The fourth proportional to 20,917.42, 31,376.21 and 14,705.24 is: 22,057.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,917.42 : 31,376.21 = 14,705.24 : x
  2. Step 2: Convert to fraction form
    20,917.42/31,376.21 = 14,705.24/x
  3. Step 3: Cross multiply
    20,917.42x = 31,376.21 × 14,705.24
  4. Step 4: Simplify right side
    20,917.42x = 461,394,467.93
  5. Step 5: Solve for x
    x = 461,394,467.93/20,917.42
  6. Step 6: Final answer
    x = 22,057.91

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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.