Home / 22,962.69-31,690.35-12,891.80

Finding the Fourth Proportional to 22,962.69, 31,690.35 and 12,891.80

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Solution

The fourth proportional to 22,962.69, 31,690.35 and 12,891.80 is: 17,791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,962.69 : 31,690.35 = 12,891.80 : x
  2. Step 2: Convert to fraction form
    22,962.69/31,690.35 = 12,891.80/x
  3. Step 3: Cross multiply
    22,962.69x = 31,690.35 × 12,891.80
  4. Step 4: Simplify right side
    22,962.69x = 408,545,463.45
  5. Step 5: Solve for x
    x = 408,545,463.45/22,962.69
  6. Step 6: Final answer
    x = 17,791.71

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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.