Home / 20,114.64-30,219.39-18,995.70

Finding the Fourth Proportional to 20,114.64, 30,219.39 and 18,995.70

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Solution

The fourth proportional to 20,114.64, 30,219.39 and 18,995.70 is: 28,538.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.64 : 30,219.39 = 18,995.70 : x
  2. Step 2: Convert to fraction form
    20,114.64/30,219.39 = 18,995.70/x
  3. Step 3: Cross multiply
    20,114.64x = 30,219.39 × 18,995.70
  4. Step 4: Simplify right side
    20,114.64x = 574,038,466.62
  5. Step 5: Solve for x
    x = 574,038,466.62/20,114.64
  6. Step 6: Final answer
    x = 28,538.34

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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.