Home / 31,311.09-43,206.62-17,879.67

Finding the Fourth Proportional to 31,311.09, 43,206.62 and 17,879.67

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Solution

The fourth proportional to 31,311.09, 43,206.62 and 17,879.67 is: 24,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311.09 : 43,206.62 = 17,879.67 : x
  2. Step 2: Convert to fraction form
    31,311.09/43,206.62 = 17,879.67/x
  3. Step 3: Cross multiply
    31,311.09x = 43,206.62 × 17,879.67
  4. Step 4: Simplify right side
    31,311.09x = 772,520,018.02
  5. Step 5: Solve for x
    x = 772,520,018.02/31,311.09
  6. Step 6: Final answer
    x = 24,672.41

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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.