Home / 31,710.94-47,562.30-11,986.93

Finding the Fourth Proportional to 31,710.94, 47,562.30 and 11,986.93

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Solution

The fourth proportional to 31,710.94, 47,562.30 and 11,986.93 is: 17,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,710.94 : 47,562.30 = 11,986.93 : x
  2. Step 2: Convert to fraction form
    31,710.94/47,562.30 = 11,986.93/x
  3. Step 3: Cross multiply
    31,710.94x = 47,562.30 × 11,986.93
  4. Step 4: Simplify right side
    31,710.94x = 570,125,960.74
  5. Step 5: Solve for x
    x = 570,125,960.74/31,710.94
  6. Step 6: Final answer
    x = 17,978.84

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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.