Home / 20,658.07-28,506.51-11,706.98

Finding the Fourth Proportional to 20,658.07, 28,506.51 and 11,706.98

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Solution

The fourth proportional to 20,658.07, 28,506.51 and 11,706.98 is: 16,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.07 : 28,506.51 = 11,706.98 : x
  2. Step 2: Convert to fraction form
    20,658.07/28,506.51 = 11,706.98/x
  3. Step 3: Cross multiply
    20,658.07x = 28,506.51 × 11,706.98
  4. Step 4: Simplify right side
    20,658.07x = 333,725,142.44
  5. Step 5: Solve for x
    x = 333,725,142.44/20,658.07
  6. Step 6: Final answer
    x = 16,154.71

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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.