Home / 40,858.16-61,282.64-11,280.20

Finding the Fourth Proportional to 40,858.16, 61,282.64 and 11,280.20

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Solution

The fourth proportional to 40,858.16, 61,282.64 and 11,280.20 is: 16,919.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,858.16 : 61,282.64 = 11,280.20 : x
  2. Step 2: Convert to fraction form
    40,858.16/61,282.64 = 11,280.20/x
  3. Step 3: Cross multiply
    40,858.16x = 61,282.64 × 11,280.20
  4. Step 4: Simplify right side
    40,858.16x = 691,280,157.52
  5. Step 5: Solve for x
    x = 691,280,157.52/40,858.16
  6. Step 6: Final answer
    x = 16,919.03

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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.