Home / 20,680.24-28,543.80-11,732.98

Finding the Fourth Proportional to 20,680.24, 28,543.80 and 11,732.98

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Solution

The fourth proportional to 20,680.24, 28,543.80 and 11,732.98 is: 16,194.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.24 : 28,543.80 = 11,732.98 : x
  2. Step 2: Convert to fraction form
    20,680.24/28,543.80 = 11,732.98/x
  3. Step 3: Cross multiply
    20,680.24x = 28,543.80 × 11,732.98
  4. Step 4: Simplify right side
    20,680.24x = 334,903,834.52
  5. Step 5: Solve for x
    x = 334,903,834.52/20,680.24
  6. Step 6: Final answer
    x = 16,194.39

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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.