Home / 23,119.13-31,904.42-12,508.79

Finding the Fourth Proportional to 23,119.13, 31,904.42 and 12,508.79

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Solution

The fourth proportional to 23,119.13, 31,904.42 and 12,508.79 is: 17,262.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.13 : 31,904.42 = 12,508.79 : x
  2. Step 2: Convert to fraction form
    23,119.13/31,904.42 = 12,508.79/x
  3. Step 3: Cross multiply
    23,119.13x = 31,904.42 × 12,508.79
  4. Step 4: Simplify right side
    23,119.13x = 399,085,467.79
  5. Step 5: Solve for x
    x = 399,085,467.79/23,119.13
  6. Step 6: Final answer
    x = 17,262.13

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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.