Home / 28,226.98-42,340.48-7,168.60

Finding the Fourth Proportional to 28,226.98, 42,340.48 and 7,168.60

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Solution

The fourth proportional to 28,226.98, 42,340.48 and 7,168.60 is: 10,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.98 : 42,340.48 = 7,168.60 : x
  2. Step 2: Convert to fraction form
    28,226.98/42,340.48 = 7,168.60/x
  3. Step 3: Cross multiply
    28,226.98x = 42,340.48 × 7,168.60
  4. Step 4: Simplify right side
    28,226.98x = 303,521,802.09
  5. Step 5: Solve for x
    x = 303,521,802.09/28,226.98
  6. Step 6: Final answer
    x = 10,752.90

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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.