Home / 20,717.98-28,591.63-11,766.31

Finding the Fourth Proportional to 20,717.98, 28,591.63 and 11,766.31

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Solution

The fourth proportional to 20,717.98, 28,591.63 and 11,766.31 is: 16,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.98 : 28,591.63 = 11,766.31 : x
  2. Step 2: Convert to fraction form
    20,717.98/28,591.63 = 11,766.31/x
  3. Step 3: Cross multiply
    20,717.98x = 28,591.63 × 11,766.31
  4. Step 4: Simplify right side
    20,717.98x = 336,417,881.09
  5. Step 5: Solve for x
    x = 336,417,881.09/20,717.98
  6. Step 6: Final answer
    x = 16,237.97

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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.