Home / 20,616.14-28,450.15-11,184.50

Finding the Fourth Proportional to 20,616.14, 28,450.15 and 11,184.50

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Solution

The fourth proportional to 20,616.14, 28,450.15 and 11,184.50 is: 15,434.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.14 : 28,450.15 = 11,184.50 : x
  2. Step 2: Convert to fraction form
    20,616.14/28,450.15 = 11,184.50/x
  3. Step 3: Cross multiply
    20,616.14x = 28,450.15 × 11,184.50
  4. Step 4: Simplify right side
    20,616.14x = 318,200,532.46
  5. Step 5: Solve for x
    x = 318,200,532.46/20,616.14
  6. Step 6: Final answer
    x = 15,434.54

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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.