Home / 20,114.14-30,218.64-18,995.20

Finding the Fourth Proportional to 20,114.14, 30,218.64 and 18,995.20

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Solution

The fourth proportional to 20,114.14, 30,218.64 and 18,995.20 is: 28,537.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.14 : 30,218.64 = 18,995.20 : x
  2. Step 2: Convert to fraction form
    20,114.14/30,218.64 = 18,995.20/x
  3. Step 3: Cross multiply
    20,114.14x = 30,218.64 × 18,995.20
  4. Step 4: Simplify right side
    20,114.14x = 574,009,110.53
  5. Step 5: Solve for x
    x = 574,009,110.53/20,114.14
  6. Step 6: Final answer
    x = 28,537.59

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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.