Home / 27,176.86-40,782.63-12,387.28

Finding the Fourth Proportional to 27,176.86, 40,782.63 and 12,387.28

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Solution

The fourth proportional to 27,176.86, 40,782.63 and 12,387.28 is: 18,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,176.86 : 40,782.63 = 12,387.28 : x
  2. Step 2: Convert to fraction form
    27,176.86/40,782.63 = 12,387.28/x
  3. Step 3: Cross multiply
    27,176.86x = 40,782.63 × 12,387.28
  4. Step 4: Simplify right side
    27,176.86x = 505,185,856.95
  5. Step 5: Solve for x
    x = 505,185,856.95/27,176.86
  6. Step 6: Final answer
    x = 18,588.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.