Home / 20,323.67-30,488.80-6,280.42

Finding the Fourth Proportional to 20,323.67, 30,488.80 and 6,280.42

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Solution

The fourth proportional to 20,323.67, 30,488.80 and 6,280.42 is: 9,421.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.67 : 30,488.80 = 6,280.42 : x
  2. Step 2: Convert to fraction form
    20,323.67/30,488.80 = 6,280.42/x
  3. Step 3: Cross multiply
    20,323.67x = 30,488.80 × 6,280.42
  4. Step 4: Simplify right side
    20,323.67x = 191,482,469.30
  5. Step 5: Solve for x
    x = 191,482,469.30/20,323.67
  6. Step 6: Final answer
    x = 9,421.65

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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.