Home / 23,144.40-31,939.29-13,072.86

Finding the Fourth Proportional to 23,144.40, 31,939.29 and 13,072.86

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Solution

The fourth proportional to 23,144.40, 31,939.29 and 13,072.86 is: 18,040.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,144.40 : 31,939.29 = 13,072.86 : x
  2. Step 2: Convert to fraction form
    23,144.40/31,939.29 = 13,072.86/x
  3. Step 3: Cross multiply
    23,144.40x = 31,939.29 × 13,072.86
  4. Step 4: Simplify right side
    23,144.40x = 417,537,866.67
  5. Step 5: Solve for x
    x = 417,537,866.67/23,144.40
  6. Step 6: Final answer
    x = 18,040.56

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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.