Home / 31,816.14-47,745.54-14,287.20

Finding the Fourth Proportional to 31,816.14, 47,745.54 and 14,287.20

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Solution

The fourth proportional to 31,816.14, 47,745.54 and 14,287.20 is: 21,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,816.14 : 47,745.54 = 14,287.20 : x
  2. Step 2: Convert to fraction form
    31,816.14/47,745.54 = 14,287.20/x
  3. Step 3: Cross multiply
    31,816.14x = 47,745.54 × 14,287.20
  4. Step 4: Simplify right side
    31,816.14x = 682,150,079.09
  5. Step 5: Solve for x
    x = 682,150,079.09/31,816.14
  6. Step 6: Final answer
    x = 21,440.38

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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.