Home / 28,121.73-42,176.82-10,346.28

Finding the Fourth Proportional to 28,121.73, 42,176.82 and 10,346.28

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Solution

The fourth proportional to 28,121.73, 42,176.82 and 10,346.28 is: 15,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.73 : 42,176.82 = 10,346.28 : x
  2. Step 2: Convert to fraction form
    28,121.73/42,176.82 = 10,346.28/x
  3. Step 3: Cross multiply
    28,121.73x = 42,176.82 × 10,346.28
  4. Step 4: Simplify right side
    28,121.73x = 436,373,189.23
  5. Step 5: Solve for x
    x = 436,373,189.23/28,121.73
  6. Step 6: Final answer
    x = 15,517.30

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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.