Home / 20,671.44-31,007.18-7,523.92

Finding the Fourth Proportional to 20,671.44, 31,007.18 and 7,523.92

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Solution

The fourth proportional to 20,671.44, 31,007.18 and 7,523.92 is: 11,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.44 : 31,007.18 = 7,523.92 : x
  2. Step 2: Convert to fraction form
    20,671.44/31,007.18 = 7,523.92/x
  3. Step 3: Cross multiply
    20,671.44x = 31,007.18 × 7,523.92
  4. Step 4: Simplify right side
    20,671.44x = 233,295,541.75
  5. Step 5: Solve for x
    x = 233,295,541.75/20,671.44
  6. Step 6: Final answer
    x = 11,285.89

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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.