Home / 31,865.67-43,972.91-18,437.14

Finding the Fourth Proportional to 31,865.67, 43,972.91 and 18,437.14

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Solution

The fourth proportional to 31,865.67, 43,972.91 and 18,437.14 is: 25,442.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,865.67 : 43,972.91 = 18,437.14 : x
  2. Step 2: Convert to fraction form
    31,865.67/43,972.91 = 18,437.14/x
  3. Step 3: Cross multiply
    31,865.67x = 43,972.91 × 18,437.14
  4. Step 4: Simplify right side
    31,865.67x = 810,734,697.88
  5. Step 5: Solve for x
    x = 810,734,697.88/31,865.67
  6. Step 6: Final answer
    x = 25,442.27

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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.