Home / 31,757.81-43,825.41-18,328.77

Finding the Fourth Proportional to 31,757.81, 43,825.41 and 18,328.77

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Solution

The fourth proportional to 31,757.81, 43,825.41 and 18,328.77 is: 25,293.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,757.81 : 43,825.41 = 18,328.77 : x
  2. Step 2: Convert to fraction form
    31,757.81/43,825.41 = 18,328.77/x
  3. Step 3: Cross multiply
    31,757.81x = 43,825.41 × 18,328.77
  4. Step 4: Simplify right side
    31,757.81x = 803,265,860.05
  5. Step 5: Solve for x
    x = 803,265,860.05/31,757.81
  6. Step 6: Final answer
    x = 25,293.49

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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.