Home / 22,154-30,572.79-12,723.44

Finding the Fourth Proportional to 22,154, 30,572.79 and 12,723.44

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Solution

The fourth proportional to 22,154, 30,572.79 and 12,723.44 is: 17,558.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,154 : 30,572.79 = 12,723.44 : x
  2. Step 2: Convert to fraction form
    22,154/30,572.79 = 12,723.44/x
  3. Step 3: Cross multiply
    22,154x = 30,572.79 × 12,723.44
  4. Step 4: Simplify right side
    22,154x = 388,991,059.20
  5. Step 5: Solve for x
    x = 388,991,059.20/22,154
  6. Step 6: Final answer
    x = 17,558.50

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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.