Home / 31,455.42-47,176.65-13,914.06

Finding the Fourth Proportional to 31,455.42, 47,176.65 and 13,914.06

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Solution

The fourth proportional to 31,455.42, 47,176.65 and 13,914.06 is: 20,868.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.42 : 47,176.65 = 13,914.06 : x
  2. Step 2: Convert to fraction form
    31,455.42/47,176.65 = 13,914.06/x
  3. Step 3: Cross multiply
    31,455.42x = 47,176.65 × 13,914.06
  4. Step 4: Simplify right side
    31,455.42x = 656,418,738.70
  5. Step 5: Solve for x
    x = 656,418,738.70/31,455.42
  6. Step 6: Final answer
    x = 20,868.22

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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.