Home / 28,226.77-42,340.17-7,168.39

Finding the Fourth Proportional to 28,226.77, 42,340.17 and 7,168.39

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Solution

The fourth proportional to 28,226.77, 42,340.17 and 7,168.39 is: 10,752.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.77 : 42,340.17 = 7,168.39 : x
  2. Step 2: Convert to fraction form
    28,226.77/42,340.17 = 7,168.39/x
  3. Step 3: Cross multiply
    28,226.77x = 42,340.17 × 7,168.39
  4. Step 4: Simplify right side
    28,226.77x = 303,510,672.39
  5. Step 5: Solve for x
    x = 303,510,672.39/28,226.77
  6. Step 6: Final answer
    x = 10,752.58

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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.