Home / 22,561.26-31,133.85-12,489.36

Finding the Fourth Proportional to 22,561.26, 31,133.85 and 12,489.36

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Solution

The fourth proportional to 22,561.26, 31,133.85 and 12,489.36 is: 17,234.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,561.26 : 31,133.85 = 12,489.36 : x
  2. Step 2: Convert to fraction form
    22,561.26/31,133.85 = 12,489.36/x
  3. Step 3: Cross multiply
    22,561.26x = 31,133.85 × 12,489.36
  4. Step 4: Simplify right side
    22,561.26x = 388,841,860.84
  5. Step 5: Solve for x
    x = 388,841,860.84/22,561.26
  6. Step 6: Final answer
    x = 17,234.94

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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.