Home / 28,412.16-42,593.28-11,761.60

Finding the Fourth Proportional to 28,412.16, 42,593.28 and 11,761.60

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Solution

The fourth proportional to 28,412.16, 42,593.28 and 11,761.60 is: 17,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.16 : 42,593.28 = 11,761.60 : x
  2. Step 2: Convert to fraction form
    28,412.16/42,593.28 = 11,761.60/x
  3. Step 3: Cross multiply
    28,412.16x = 42,593.28 × 11,761.60
  4. Step 4: Simplify right side
    28,412.16x = 500,965,122.05
  5. Step 5: Solve for x
    x = 500,965,122.05/28,412.16
  6. Step 6: Final answer
    x = 17,632.07

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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.