Home / 22,661.26-31,272.75-12,589.72

Finding the Fourth Proportional to 22,661.26, 31,272.75 and 12,589.72

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Solution

The fourth proportional to 22,661.26, 31,272.75 and 12,589.72 is: 17,373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.26 : 31,272.75 = 12,589.72 : x
  2. Step 2: Convert to fraction form
    22,661.26/31,272.75 = 12,589.72/x
  3. Step 3: Cross multiply
    22,661.26x = 31,272.75 × 12,589.72
  4. Step 4: Simplify right side
    22,661.26x = 393,715,087.95
  5. Step 5: Solve for x
    x = 393,715,087.95/22,661.26
  6. Step 6: Final answer
    x = 17,373.93

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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.