Home / 27,665.86-38,176.32-15,726.86

Finding the Fourth Proportional to 27,665.86, 38,176.32 and 15,726.86

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Solution

The fourth proportional to 27,665.86, 38,176.32 and 15,726.86 is: 21,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.86 : 38,176.32 = 15,726.86 : x
  2. Step 2: Convert to fraction form
    27,665.86/38,176.32 = 15,726.86/x
  3. Step 3: Cross multiply
    27,665.86x = 38,176.32 × 15,726.86
  4. Step 4: Simplify right side
    27,665.86x = 600,393,735.40
  5. Step 5: Solve for x
    x = 600,393,735.40/27,665.86
  6. Step 6: Final answer
    x = 21,701.61

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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.