Home / 31,188.03-43,038.55-17,040.87

Finding the Fourth Proportional to 31,188.03, 43,038.55 and 17,040.87

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Solution

The fourth proportional to 31,188.03, 43,038.55 and 17,040.87 is: 23,515.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,188.03 : 43,038.55 = 17,040.87 : x
  2. Step 2: Convert to fraction form
    31,188.03/43,038.55 = 17,040.87/x
  3. Step 3: Cross multiply
    31,188.03x = 43,038.55 × 17,040.87
  4. Step 4: Simplify right side
    31,188.03x = 733,414,335.54
  5. Step 5: Solve for x
    x = 733,414,335.54/31,188.03
  6. Step 6: Final answer
    x = 23,515.89

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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.