Home / 27,716.18-38,252.99-15,777.86

Finding the Fourth Proportional to 27,716.18, 38,252.99 and 15,777.86

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Solution

The fourth proportional to 27,716.18, 38,252.99 and 15,777.86 is: 21,776.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,716.18 : 38,252.99 = 15,777.86 : x
  2. Step 2: Convert to fraction form
    27,716.18/38,252.99 = 15,777.86/x
  3. Step 3: Cross multiply
    27,716.18x = 38,252.99 × 15,777.86
  4. Step 4: Simplify right side
    27,716.18x = 603,550,168.98
  5. Step 5: Solve for x
    x = 603,550,168.98/27,716.18
  6. Step 6: Final answer
    x = 21,776.10

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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.