Home / 23,179.36-31,987.29-12,568.81

Finding the Fourth Proportional to 23,179.36, 31,987.29 and 12,568.81

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Solution

The fourth proportional to 23,179.36, 31,987.29 and 12,568.81 is: 17,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.36 : 31,987.29 = 12,568.81 : x
  2. Step 2: Convert to fraction form
    23,179.36/31,987.29 = 12,568.81/x
  3. Step 3: Cross multiply
    23,179.36x = 31,987.29 × 12,568.81
  4. Step 4: Simplify right side
    23,179.36x = 402,042,170.42
  5. Step 5: Solve for x
    x = 402,042,170.42/23,179.36
  6. Step 6: Final answer
    x = 17,344.83

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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.