Home / 31,703.40-43,750.61-18,274.56

Finding the Fourth Proportional to 31,703.40, 43,750.61 and 18,274.56

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Solution

The fourth proportional to 31,703.40, 43,750.61 and 18,274.56 is: 25,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,703.40 : 43,750.61 = 18,274.56 : x
  2. Step 2: Convert to fraction form
    31,703.40/43,750.61 = 18,274.56/x
  3. Step 3: Cross multiply
    31,703.40x = 43,750.61 × 18,274.56
  4. Step 4: Simplify right side
    31,703.40x = 799,523,147.48
  5. Step 5: Solve for x
    x = 799,523,147.48/31,703.40
  6. Step 6: Final answer
    x = 25,218.85

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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.