Home / 27,336.72-37,721.40-15,399.72

Finding the Fourth Proportional to 27,336.72, 37,721.40 and 15,399.72

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Solution

The fourth proportional to 27,336.72, 37,721.40 and 15,399.72 is: 21,249.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,336.72 : 37,721.40 = 15,399.72 : x
  2. Step 2: Convert to fraction form
    27,336.72/37,721.40 = 15,399.72/x
  3. Step 3: Cross multiply
    27,336.72x = 37,721.40 × 15,399.72
  4. Step 4: Simplify right side
    27,336.72x = 580,898,998.01
  5. Step 5: Solve for x
    x = 580,898,998.01/27,336.72
  6. Step 6: Final answer
    x = 21,249.77

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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.