Home / 31,710.44-47,572.62-11,989.16

Finding the Fourth Proportional to 31,710.44, 47,572.62 and 11,989.16

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Solution

The fourth proportional to 31,710.44, 47,572.62 and 11,989.16 is: 17,986.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,710.44 : 47,572.62 = 11,989.16 : x
  2. Step 2: Convert to fraction form
    31,710.44/47,572.62 = 11,989.16/x
  3. Step 3: Cross multiply
    31,710.44x = 47,572.62 × 11,989.16
  4. Step 4: Simplify right side
    31,710.44x = 570,355,752.80
  5. Step 5: Solve for x
    x = 570,355,752.80/31,710.44
  6. Step 6: Final answer
    x = 17,986.37

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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.