Home / 18,212.60-25,082.70-16,876.28

Finding the Fourth Proportional to 18,212.60, 25,082.70 and 16,876.28

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Solution

The fourth proportional to 18,212.60, 25,082.70 and 16,876.28 is: 23,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.60 : 25,082.70 = 16,876.28 : x
  2. Step 2: Convert to fraction form
    18,212.60/25,082.70 = 16,876.28/x
  3. Step 3: Cross multiply
    18,212.60x = 25,082.70 × 16,876.28
  4. Step 4: Simplify right side
    18,212.60x = 423,302,668.36
  5. Step 5: Solve for x
    x = 423,302,668.36/18,212.60
  6. Step 6: Final answer
    x = 23,242.30

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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.