Home / 20,337.36-30,456.36-12,535.44

Finding the Fourth Proportional to 20,337.36, 30,456.36 and 12,535.44

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Solution

The fourth proportional to 20,337.36, 30,456.36 and 12,535.44 is: 18,772.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.36 : 30,456.36 = 12,535.44 : x
  2. Step 2: Convert to fraction form
    20,337.36/30,456.36 = 12,535.44/x
  3. Step 3: Cross multiply
    20,337.36x = 30,456.36 × 12,535.44
  4. Step 4: Simplify right side
    20,337.36x = 381,783,873.40
  5. Step 5: Solve for x
    x = 381,783,873.40/20,337.36
  6. Step 6: Final answer
    x = 18,772.54

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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.