Home / 28,107.36-42,157.44-7,332.48

Finding the Fourth Proportional to 28,107.36, 42,157.44 and 7,332.48

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Solution

The fourth proportional to 28,107.36, 42,157.44 and 7,332.48 is: 10,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.36 : 42,157.44 = 7,332.48 : x
  2. Step 2: Convert to fraction form
    28,107.36/42,157.44 = 7,332.48/x
  3. Step 3: Cross multiply
    28,107.36x = 42,157.44 × 7,332.48
  4. Step 4: Simplify right side
    28,107.36x = 309,118,585.65
  5. Step 5: Solve for x
    x = 309,118,585.65/28,107.36
  6. Step 6: Final answer
    x = 10,997.78

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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.