Home / 20,718.06-28,592.92-12,764.94

Finding the Fourth Proportional to 20,718.06, 28,592.92 and 12,764.94

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Solution

The fourth proportional to 20,718.06, 28,592.92 and 12,764.94 is: 17,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.06 : 28,592.92 = 12,764.94 : x
  2. Step 2: Convert to fraction form
    20,718.06/28,592.92 = 12,764.94/x
  3. Step 3: Cross multiply
    20,718.06x = 28,592.92 × 12,764.94
  4. Step 4: Simplify right side
    20,718.06x = 364,986,908.22
  5. Step 5: Solve for x
    x = 364,986,908.22/20,718.06
  6. Step 6: Final answer
    x = 17,616.85

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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.