Home / 28,093.92-42,140.70-7,317.42

Finding the Fourth Proportional to 28,093.92, 42,140.70 and 7,317.42

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Solution

The fourth proportional to 28,093.92, 42,140.70 and 7,317.42 is: 10,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,093.92 : 42,140.70 = 7,317.42 : x
  2. Step 2: Convert to fraction form
    28,093.92/42,140.70 = 7,317.42/x
  3. Step 3: Cross multiply
    28,093.92x = 42,140.70 × 7,317.42
  4. Step 4: Simplify right side
    28,093.92x = 308,361,200.99
  5. Step 5: Solve for x
    x = 308,361,200.99/28,093.92
  6. Step 6: Final answer
    x = 10,976.08

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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.