Home / 20,697.84-28,566-11,624.22

Finding the Fourth Proportional to 20,697.84, 28,566 and 11,624.22

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Solution

The fourth proportional to 20,697.84, 28,566 and 11,624.22 is: 16,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.84 : 28,566 = 11,624.22 : x
  2. Step 2: Convert to fraction form
    20,697.84/28,566 = 11,624.22/x
  3. Step 3: Cross multiply
    20,697.84x = 28,566 × 11,624.22
  4. Step 4: Simplify right side
    20,697.84x = 332,057,468.52
  5. Step 5: Solve for x
    x = 332,057,468.52/20,697.84
  6. Step 6: Final answer
    x = 16,043.10

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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.