Home / 31,477.88-47,171.46-18,150.34

Finding the Fourth Proportional to 31,477.88, 47,171.46 and 18,150.34

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Solution

The fourth proportional to 31,477.88, 47,171.46 and 18,150.34 is: 27,199.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477.88 : 47,171.46 = 18,150.34 : x
  2. Step 2: Convert to fraction form
    31,477.88/47,171.46 = 18,150.34/x
  3. Step 3: Cross multiply
    31,477.88x = 47,171.46 × 18,150.34
  4. Step 4: Simplify right side
    31,477.88x = 856,178,037.30
  5. Step 5: Solve for x
    x = 856,178,037.30/31,477.88
  6. Step 6: Final answer
    x = 27,199.36

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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.