Home / 28,407.11-42,616.82-10,876.94

Finding the Fourth Proportional to 28,407.11, 42,616.82 and 10,876.94

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Solution

The fourth proportional to 28,407.11, 42,616.82 and 10,876.94 is: 16,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.11 : 42,616.82 = 10,876.94 : x
  2. Step 2: Convert to fraction form
    28,407.11/42,616.82 = 10,876.94/x
  3. Step 3: Cross multiply
    28,407.11x = 42,616.82 × 10,876.94
  4. Step 4: Simplify right side
    28,407.11x = 463,540,539.75
  5. Step 5: Solve for x
    x = 463,540,539.75/28,407.11
  6. Step 6: Final answer
    x = 16,317.76

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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.