Home / 31,485.30-47,236.14-13,950.96

Finding the Fourth Proportional to 31,485.30, 47,236.14 and 13,950.96

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Solution

The fourth proportional to 31,485.30, 47,236.14 and 13,950.96 is: 20,930.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485.30 : 47,236.14 = 13,950.96 : x
  2. Step 2: Convert to fraction form
    31,485.30/47,236.14 = 13,950.96/x
  3. Step 3: Cross multiply
    31,485.30x = 47,236.14 × 13,950.96
  4. Step 4: Simplify right side
    31,485.30x = 658,989,499.69
  5. Step 5: Solve for x
    x = 658,989,499.69/31,485.30
  6. Step 6: Final answer
    x = 20,930.07

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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.