Home / 28,613.50-42,912.44-11,970.83

Finding the Fourth Proportional to 28,613.50, 42,912.44 and 11,970.83

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Solution

The fourth proportional to 28,613.50, 42,912.44 and 11,970.83 is: 17,952.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.50 : 42,912.44 = 11,970.83 : x
  2. Step 2: Convert to fraction form
    28,613.50/42,912.44 = 11,970.83/x
  3. Step 3: Cross multiply
    28,613.50x = 42,912.44 × 11,970.83
  4. Step 4: Simplify right side
    28,613.50x = 513,697,464.27
  5. Step 5: Solve for x
    x = 513,697,464.27/28,613.50
  6. Step 6: Final answer
    x = 17,952.98

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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.