Home / 31,883.83-43,953.61-21,110.65

Finding the Fourth Proportional to 31,883.83, 43,953.61 and 21,110.65

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Solution

The fourth proportional to 31,883.83, 43,953.61 and 21,110.65 is: 29,102.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,883.83 : 43,953.61 = 21,110.65 : x
  2. Step 2: Convert to fraction form
    31,883.83/43,953.61 = 21,110.65/x
  3. Step 3: Cross multiply
    31,883.83x = 43,953.61 × 21,110.65
  4. Step 4: Simplify right side
    31,883.83x = 927,889,336.86
  5. Step 5: Solve for x
    x = 927,889,336.86/31,883.83
  6. Step 6: Final answer
    x = 29,102.19

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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.