Home / 20,710.60-31,098.30-11,962.60

Finding the Fourth Proportional to 20,710.60, 31,098.30 and 11,962.60

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Solution

The fourth proportional to 20,710.60, 31,098.30 and 11,962.60 is: 17,962.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.60 : 31,098.30 = 11,962.60 : x
  2. Step 2: Convert to fraction form
    20,710.60/31,098.30 = 11,962.60/x
  3. Step 3: Cross multiply
    20,710.60x = 31,098.30 × 11,962.60
  4. Step 4: Simplify right side
    20,710.60x = 372,016,523.58
  5. Step 5: Solve for x
    x = 372,016,523.58/20,710.60
  6. Step 6: Final answer
    x = 17,962.61

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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.