Home / 20,315.74-30,466.03-6,984.96

Finding the Fourth Proportional to 20,315.74, 30,466.03 and 6,984.96

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Solution

The fourth proportional to 20,315.74, 30,466.03 and 6,984.96 is: 10,474.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315.74 : 30,466.03 = 6,984.96 : x
  2. Step 2: Convert to fraction form
    20,315.74/30,466.03 = 6,984.96/x
  3. Step 3: Cross multiply
    20,315.74x = 30,466.03 × 6,984.96
  4. Step 4: Simplify right side
    20,315.74x = 212,803,983.45
  5. Step 5: Solve for x
    x = 212,803,983.45/20,315.74
  6. Step 6: Final answer
    x = 10,474.83

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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.