Home / 28,408.11-42,618.32-10,877.94

Finding the Fourth Proportional to 28,408.11, 42,618.32 and 10,877.94

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Solution

The fourth proportional to 28,408.11, 42,618.32 and 10,877.94 is: 16,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.11 : 42,618.32 = 10,877.94 : x
  2. Step 2: Convert to fraction form
    28,408.11/42,618.32 = 10,877.94/x
  3. Step 3: Cross multiply
    28,408.11x = 42,618.32 × 10,877.94
  4. Step 4: Simplify right side
    28,408.11x = 463,599,527.86
  5. Step 5: Solve for x
    x = 463,599,527.86/28,408.11
  6. Step 6: Final answer
    x = 16,319.27

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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.