Home / 18,933.59-28,400.39-5,082.59

Finding the Fourth Proportional to 18,933.59, 28,400.39 and 5,082.59

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Solution

The fourth proportional to 18,933.59, 28,400.39 and 5,082.59 is: 7,623.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.59 : 28,400.39 = 5,082.59 : x
  2. Step 2: Convert to fraction form
    18,933.59/28,400.39 = 5,082.59/x
  3. Step 3: Cross multiply
    18,933.59x = 28,400.39 × 5,082.59
  4. Step 4: Simplify right side
    18,933.59x = 144,347,577.53
  5. Step 5: Solve for x
    x = 144,347,577.53/18,933.59
  6. Step 6: Final answer
    x = 7,623.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.