Home / 20,682.74-28,558.77-14,384.18

Finding the Fourth Proportional to 20,682.74, 28,558.77 and 14,384.18

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Solution

The fourth proportional to 20,682.74, 28,558.77 and 14,384.18 is: 19,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.74 : 28,558.77 = 14,384.18 : x
  2. Step 2: Convert to fraction form
    20,682.74/28,558.77 = 14,384.18/x
  3. Step 3: Cross multiply
    20,682.74x = 28,558.77 × 14,384.18
  4. Step 4: Simplify right side
    20,682.74x = 410,794,488.26
  5. Step 5: Solve for x
    x = 410,794,488.26/20,682.74
  6. Step 6: Final answer
    x = 19,861.71

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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.