Home / 20,578.50-28,396.06-11,624.11

Finding the Fourth Proportional to 20,578.50, 28,396.06 and 11,624.11

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Solution

The fourth proportional to 20,578.50, 28,396.06 and 11,624.11 is: 16,039.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.50 : 28,396.06 = 11,624.11 : x
  2. Step 2: Convert to fraction form
    20,578.50/28,396.06 = 11,624.11/x
  3. Step 3: Cross multiply
    20,578.50x = 28,396.06 × 11,624.11
  4. Step 4: Simplify right side
    20,578.50x = 330,078,824.96
  5. Step 5: Solve for x
    x = 330,078,824.96/20,578.50
  6. Step 6: Final answer
    x = 16,039.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.