Home / 31,723.87-47,580.64-11,997.74

Finding the Fourth Proportional to 31,723.87, 47,580.64 and 11,997.74

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Solution

The fourth proportional to 31,723.87, 47,580.64 and 11,997.74 is: 17,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.87 : 47,580.64 = 11,997.74 : x
  2. Step 2: Convert to fraction form
    31,723.87/47,580.64 = 11,997.74/x
  3. Step 3: Cross multiply
    31,723.87x = 47,580.64 × 11,997.74
  4. Step 4: Simplify right side
    31,723.87x = 570,859,879.86
  5. Step 5: Solve for x
    x = 570,859,879.86/31,723.87
  6. Step 6: Final answer
    x = 17,994.65

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1.5x scale

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.