Home / 20,528.46-30,780.36-8,033.58

Finding the Fourth Proportional to 20,528.46, 30,780.36 and 8,033.58

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Solution

The fourth proportional to 20,528.46, 30,780.36 and 8,033.58 is: 12,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.46 : 30,780.36 = 8,033.58 : x
  2. Step 2: Convert to fraction form
    20,528.46/30,780.36 = 8,033.58/x
  3. Step 3: Cross multiply
    20,528.46x = 30,780.36 × 8,033.58
  4. Step 4: Simplify right side
    20,528.46x = 247,276,484.49
  5. Step 5: Solve for x
    x = 247,276,484.49/20,528.46
  6. Step 6: Final answer
    x = 12,045.54

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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.