Home / 20,785.04-31,187.24-12,027.32

Finding the Fourth Proportional to 20,785.04, 31,187.24 and 12,027.32

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Solution

The fourth proportional to 20,785.04, 31,187.24 and 12,027.32 is: 18,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785.04 : 31,187.24 = 12,027.32 : x
  2. Step 2: Convert to fraction form
    20,785.04/31,187.24 = 12,027.32/x
  3. Step 3: Cross multiply
    20,785.04x = 31,187.24 × 12,027.32
  4. Step 4: Simplify right side
    20,785.04x = 375,098,915.40
  5. Step 5: Solve for x
    x = 375,098,915.40/20,785.04
  6. Step 6: Final answer
    x = 18,046.58

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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.