Home / 31,187.14-43,038.90-17,040.92

Finding the Fourth Proportional to 31,187.14, 43,038.90 and 17,040.92

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Solution

The fourth proportional to 31,187.14, 43,038.90 and 17,040.92 is: 23,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.14 : 43,038.90 = 17,040.92 : x
  2. Step 2: Convert to fraction form
    31,187.14/43,038.90 = 17,040.92/x
  3. Step 3: Cross multiply
    31,187.14x = 43,038.90 × 17,040.92
  4. Step 4: Simplify right side
    31,187.14x = 733,422,451.79
  5. Step 5: Solve for x
    x = 733,422,451.79/31,187.14
  6. Step 6: Final answer
    x = 23,516.82

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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.