Home / 31,187.40-43,038.75-17,040.57

Finding the Fourth Proportional to 31,187.40, 43,038.75 and 17,040.57

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Solution

The fourth proportional to 31,187.40, 43,038.75 and 17,040.57 is: 23,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.40 : 43,038.75 = 17,040.57 : x
  2. Step 2: Convert to fraction form
    31,187.40/43,038.75 = 17,040.57/x
  3. Step 3: Cross multiply
    31,187.40x = 43,038.75 × 17,040.57
  4. Step 4: Simplify right side
    31,187.40x = 733,404,832.09
  5. Step 5: Solve for x
    x = 733,404,832.09/31,187.40
  6. Step 6: Final answer
    x = 23,516.06

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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.