Home / 31,238.73-43,109.64-16,898.58

Finding the Fourth Proportional to 31,238.73, 43,109.64 and 16,898.58

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Solution

The fourth proportional to 31,238.73, 43,109.64 and 16,898.58 is: 23,320.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.73 : 43,109.64 = 16,898.58 : x
  2. Step 2: Convert to fraction form
    31,238.73/43,109.64 = 16,898.58/x
  3. Step 3: Cross multiply
    31,238.73x = 43,109.64 × 16,898.58
  4. Step 4: Simplify right side
    31,238.73x = 728,491,700.31
  5. Step 5: Solve for x
    x = 728,491,700.31/31,238.73
  6. Step 6: Final answer
    x = 23,320.14

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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.