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Finding the Fourth Proportional to 28,249.59, 42,390.59 and 10,492.59

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Solution

The fourth proportional to 28,249.59, 42,390.59 and 10,492.59 is: 15,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.59 : 42,390.59 = 10,492.59 : x
  2. Step 2: Convert to fraction form
    28,249.59/42,390.59 = 10,492.59/x
  3. Step 3: Cross multiply
    28,249.59x = 42,390.59 × 10,492.59
  4. Step 4: Simplify right side
    28,249.59x = 444,787,028.27
  5. Step 5: Solve for x
    x = 444,787,028.27/28,249.59
  6. Step 6: Final answer
    x = 15,744.90

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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.