Home / 31,399.85-47,099.79-8,026.31

Finding the Fourth Proportional to 31,399.85, 47,099.79 and 8,026.31

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Solution

The fourth proportional to 31,399.85, 47,099.79 and 8,026.31 is: 12,039.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.85 : 47,099.79 = 8,026.31 : x
  2. Step 2: Convert to fraction form
    31,399.85/47,099.79 = 8,026.31/x
  3. Step 3: Cross multiply
    31,399.85x = 47,099.79 × 8,026.31
  4. Step 4: Simplify right side
    31,399.85x = 378,037,279.98
  5. Step 5: Solve for x
    x = 378,037,279.98/31,399.85
  6. Step 6: Final answer
    x = 12,039.46

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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.