Home / 31,007.00-42,789.44-16,859.85

Finding the Fourth Proportional to 31,007.00, 42,789.44 and 16,859.85

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Solution

The fourth proportional to 31,007.00, 42,789.44 and 16,859.85 is: 23,266.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,007.00 : 42,789.44 = 16,859.85 : x
  2. Step 2: Convert to fraction form
    31,007.00/42,789.44 = 16,859.85/x
  3. Step 3: Cross multiply
    31,007.00x = 42,789.44 × 16,859.85
  4. Step 4: Simplify right side
    31,007.00x = 721,423,455.68
  5. Step 5: Solve for x
    x = 721,423,455.68/31,007.00
  6. Step 6: Final answer
    x = 23,266.47

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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.