Home / 28,278.92-42,418.38-10,744.60

Finding the Fourth Proportional to 28,278.92, 42,418.38 and 10,744.60

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Solution

The fourth proportional to 28,278.92, 42,418.38 and 10,744.60 is: 16,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.92 : 42,418.38 = 10,744.60 : x
  2. Step 2: Convert to fraction form
    28,278.92/42,418.38 = 10,744.60/x
  3. Step 3: Cross multiply
    28,278.92x = 42,418.38 × 10,744.60
  4. Step 4: Simplify right side
    28,278.92x = 455,768,525.75
  5. Step 5: Solve for x
    x = 455,768,525.75/28,278.92
  6. Step 6: Final answer
    x = 16,116.90

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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.