Home / 31,799.72-43,885.08-18,372.74

Finding the Fourth Proportional to 31,799.72, 43,885.08 and 18,372.74

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Solution

The fourth proportional to 31,799.72, 43,885.08 and 18,372.74 is: 25,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,799.72 : 43,885.08 = 18,372.74 : x
  2. Step 2: Convert to fraction form
    31,799.72/43,885.08 = 18,372.74/x
  3. Step 3: Cross multiply
    31,799.72x = 43,885.08 × 18,372.74
  4. Step 4: Simplify right side
    31,799.72x = 806,289,164.72
  5. Step 5: Solve for x
    x = 806,289,164.72/31,799.72
  6. Step 6: Final answer
    x = 25,355.23

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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.