Home / 22,651.88-31,259.40-12,443.07

Finding the Fourth Proportional to 22,651.88, 31,259.40 and 12,443.07

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Solution

The fourth proportional to 22,651.88, 31,259.40 and 12,443.07 is: 17,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,651.88 : 31,259.40 = 12,443.07 : x
  2. Step 2: Convert to fraction form
    22,651.88/31,259.40 = 12,443.07/x
  3. Step 3: Cross multiply
    22,651.88x = 31,259.40 × 12,443.07
  4. Step 4: Simplify right side
    22,651.88x = 388,962,902.36
  5. Step 5: Solve for x
    x = 388,962,902.36/22,651.88
  6. Step 6: Final answer
    x = 17,171.33

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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.