Home / 20,718.84-28,591.14-11,766.32

Finding the Fourth Proportional to 20,718.84, 28,591.14 and 11,766.32

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Solution

The fourth proportional to 20,718.84, 28,591.14 and 11,766.32 is: 16,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.84 : 28,591.14 = 11,766.32 : x
  2. Step 2: Convert to fraction form
    20,718.84/28,591.14 = 11,766.32/x
  3. Step 3: Cross multiply
    20,718.84x = 28,591.14 × 11,766.32
  4. Step 4: Simplify right side
    20,718.84x = 336,412,502.40
  5. Step 5: Solve for x
    x = 336,412,502.40/20,718.84
  6. Step 6: Final answer
    x = 16,237.03

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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.