Home / 23,178.06-31,984.38-13,108.61

Finding the Fourth Proportional to 23,178.06, 31,984.38 and 13,108.61

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Solution

The fourth proportional to 23,178.06, 31,984.38 and 13,108.61 is: 18,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,178.06 : 31,984.38 = 13,108.61 : x
  2. Step 2: Convert to fraction form
    23,178.06/31,984.38 = 13,108.61/x
  3. Step 3: Cross multiply
    23,178.06x = 31,984.38 × 13,108.61
  4. Step 4: Simplify right side
    23,178.06x = 419,270,843.47
  5. Step 5: Solve for x
    x = 419,270,843.47/23,178.06
  6. Step 6: Final answer
    x = 18,089.13

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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.