Home / 31,880.24-47,816.42-13,157.85

Finding the Fourth Proportional to 31,880.24, 47,816.42 and 13,157.85

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Solution

The fourth proportional to 31,880.24, 47,816.42 and 13,157.85 is: 19,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,880.24 : 47,816.42 = 13,157.85 : x
  2. Step 2: Convert to fraction form
    31,880.24/47,816.42 = 13,157.85/x
  3. Step 3: Cross multiply
    31,880.24x = 47,816.42 × 13,157.85
  4. Step 4: Simplify right side
    31,880.24x = 629,161,216.11
  5. Step 5: Solve for x
    x = 629,161,216.11/31,880.24
  6. Step 6: Final answer
    x = 19,735.15

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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.