Home / 28,194.24-38,905.20-16,861.49

Finding the Fourth Proportional to 28,194.24, 38,905.20 and 16,861.49

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Solution

The fourth proportional to 28,194.24, 38,905.20 and 16,861.49 is: 23,267.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.24 : 38,905.20 = 16,861.49 : x
  2. Step 2: Convert to fraction form
    28,194.24/38,905.20 = 16,861.49/x
  3. Step 3: Cross multiply
    28,194.24x = 38,905.20 × 16,861.49
  4. Step 4: Simplify right side
    28,194.24x = 655,999,446.22
  5. Step 5: Solve for x
    x = 655,999,446.22/28,194.24
  6. Step 6: Final answer
    x = 23,267.14

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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.