Home / 31,399.86-47,099.79-8,026.26

Finding the Fourth Proportional to 31,399.86, 47,099.79 and 8,026.26

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Solution

The fourth proportional to 31,399.86, 47,099.79 and 8,026.26 is: 12,039.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.86 : 47,099.79 = 8,026.26 : x
  2. Step 2: Convert to fraction form
    31,399.86/47,099.79 = 8,026.26/x
  3. Step 3: Cross multiply
    31,399.86x = 47,099.79 × 8,026.26
  4. Step 4: Simplify right side
    31,399.86x = 378,035,160.49
  5. Step 5: Solve for x
    x = 378,035,160.49/31,399.86
  6. Step 6: Final answer
    x = 12,039.39

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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.