Home / 31,738.40-47,609.61-10,676.78

Finding the Fourth Proportional to 31,738.40, 47,609.61 and 10,676.78

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Solution

The fourth proportional to 31,738.40, 47,609.61 and 10,676.78 is: 16,015.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,738.40 : 47,609.61 = 10,676.78 : x
  2. Step 2: Convert to fraction form
    31,738.40/47,609.61 = 10,676.78/x
  3. Step 3: Cross multiply
    31,738.40x = 47,609.61 × 10,676.78
  4. Step 4: Simplify right side
    31,738.40x = 508,317,331.86
  5. Step 5: Solve for x
    x = 508,317,331.86/31,738.40
  6. Step 6: Final answer
    x = 16,015.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.