Home / 20,140.16-30,189.44-14,579.52

Finding the Fourth Proportional to 20,140.16, 30,189.44 and 14,579.52

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Solution

The fourth proportional to 20,140.16, 30,189.44 and 14,579.52 is: 21,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.16 : 30,189.44 = 14,579.52 : x
  2. Step 2: Convert to fraction form
    20,140.16/30,189.44 = 14,579.52/x
  3. Step 3: Cross multiply
    20,140.16x = 30,189.44 × 14,579.52
  4. Step 4: Simplify right side
    20,140.16x = 440,147,544.27
  5. Step 5: Solve for x
    x = 440,147,544.27/20,140.16
  6. Step 6: Final answer
    x = 21,854.22

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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.