Home / 20,387.16-30,580.38-5,596.02

Finding the Fourth Proportional to 20,387.16, 30,580.38 and 5,596.02

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Solution

The fourth proportional to 20,387.16, 30,580.38 and 5,596.02 is: 8,393.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387.16 : 30,580.38 = 5,596.02 : x
  2. Step 2: Convert to fraction form
    20,387.16/30,580.38 = 5,596.02/x
  3. Step 3: Cross multiply
    20,387.16x = 30,580.38 × 5,596.02
  4. Step 4: Simplify right side
    20,387.16x = 171,128,418.09
  5. Step 5: Solve for x
    x = 171,128,418.09/20,387.16
  6. Step 6: Final answer
    x = 8,393.93

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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.