Home / 31,746.63-43,814.80-19,650.99

Finding the Fourth Proportional to 31,746.63, 43,814.80 and 19,650.99

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Solution

The fourth proportional to 31,746.63, 43,814.80 and 19,650.99 is: 27,121.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,746.63 : 43,814.80 = 19,650.99 : x
  2. Step 2: Convert to fraction form
    31,746.63/43,814.80 = 19,650.99/x
  3. Step 3: Cross multiply
    31,746.63x = 43,814.80 × 19,650.99
  4. Step 4: Simplify right side
    31,746.63x = 861,004,245.78
  5. Step 5: Solve for x
    x = 861,004,245.78/31,746.63
  6. Step 6: Final answer
    x = 27,121.12

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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.