Home / 23,021.73-31,772.70-12,950.55

Finding the Fourth Proportional to 23,021.73, 31,772.70 and 12,950.55

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Solution

The fourth proportional to 23,021.73, 31,772.70 and 12,950.55 is: 17,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,021.73 : 31,772.70 = 12,950.55 : x
  2. Step 2: Convert to fraction form
    23,021.73/31,772.70 = 12,950.55/x
  3. Step 3: Cross multiply
    23,021.73x = 31,772.70 × 12,950.55
  4. Step 4: Simplify right side
    23,021.73x = 411,473,939.99
  5. Step 5: Solve for x
    x = 411,473,939.99/23,021.73
  6. Step 6: Final answer
    x = 17,873.28

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Half scale
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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.