Home / 28,408.31-42,612.46-10,878.14

Finding the Fourth Proportional to 28,408.31, 42,612.46 and 10,878.14

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Solution

The fourth proportional to 28,408.31, 42,612.46 and 10,878.14 is: 16,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.31 : 42,612.46 = 10,878.14 : x
  2. Step 2: Convert to fraction form
    28,408.31/42,612.46 = 10,878.14/x
  3. Step 3: Cross multiply
    28,408.31x = 42,612.46 × 10,878.14
  4. Step 4: Simplify right side
    28,408.31x = 463,544,305.62
  5. Step 5: Solve for x
    x = 463,544,305.62/28,408.31
  6. Step 6: Final answer
    x = 16,317.21

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Similar ratio
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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.