Home / 27,128.27-37,439.46-15,029.91

Finding the Fourth Proportional to 27,128.27, 37,439.46 and 15,029.91

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Solution

The fourth proportional to 27,128.27, 37,439.46 and 15,029.91 is: 20,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.27 : 37,439.46 = 15,029.91 : x
  2. Step 2: Convert to fraction form
    27,128.27/37,439.46 = 15,029.91/x
  3. Step 3: Cross multiply
    27,128.27x = 37,439.46 × 15,029.91
  4. Step 4: Simplify right side
    27,128.27x = 562,711,714.25
  5. Step 5: Solve for x
    x = 562,711,714.25/27,128.27
  6. Step 6: Final answer
    x = 20,742.64

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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.