Home / 31,825.72-43,899.28-19,555.75

Finding the Fourth Proportional to 31,825.72, 43,899.28 and 19,555.75

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Solution

The fourth proportional to 31,825.72, 43,899.28 and 19,555.75 is: 26,974.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,825.72 : 43,899.28 = 19,555.75 : x
  2. Step 2: Convert to fraction form
    31,825.72/43,899.28 = 19,555.75/x
  3. Step 3: Cross multiply
    31,825.72x = 43,899.28 × 19,555.75
  4. Step 4: Simplify right side
    31,825.72x = 858,483,344.86
  5. Step 5: Solve for x
    x = 858,483,344.86/31,825.72
  6. Step 6: Final answer
    x = 26,974.51

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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.