Home / 23,129.88-31,922.37-13,572.09

Finding the Fourth Proportional to 23,129.88, 31,922.37 and 13,572.09

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Solution

The fourth proportional to 23,129.88, 31,922.37 and 13,572.09 is: 18,731.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.88 : 31,922.37 = 13,572.09 : x
  2. Step 2: Convert to fraction form
    23,129.88/31,922.37 = 13,572.09/x
  3. Step 3: Cross multiply
    23,129.88x = 31,922.37 × 13,572.09
  4. Step 4: Simplify right side
    23,129.88x = 433,253,278.65
  5. Step 5: Solve for x
    x = 433,253,278.65/23,129.88
  6. Step 6: Final answer
    x = 18,731.32

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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.