Home / 28,114.92-42,172.38-7,338.24

Finding the Fourth Proportional to 28,114.92, 42,172.38 and 7,338.24

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Solution

The fourth proportional to 28,114.92, 42,172.38 and 7,338.24 is: 11,007.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.92 : 42,172.38 = 7,338.24 : x
  2. Step 2: Convert to fraction form
    28,114.92/42,172.38 = 7,338.24/x
  3. Step 3: Cross multiply
    28,114.92x = 42,172.38 × 7,338.24
  4. Step 4: Simplify right side
    28,114.92x = 309,471,045.81
  5. Step 5: Solve for x
    x = 309,471,045.81/28,114.92
  6. Step 6: Final answer
    x = 11,007.36

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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.