Home / 20,132.63-30,015.16-19,621.10

Finding the Fourth Proportional to 20,132.63, 30,015.16 and 19,621.10

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Solution

The fourth proportional to 20,132.63, 30,015.16 and 19,621.10 is: 29,252.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.63 : 30,015.16 = 19,621.10 : x
  2. Step 2: Convert to fraction form
    20,132.63/30,015.16 = 19,621.10/x
  3. Step 3: Cross multiply
    20,132.63x = 30,015.16 × 19,621.10
  4. Step 4: Simplify right side
    20,132.63x = 588,930,455.88
  5. Step 5: Solve for x
    x = 588,930,455.88/20,132.63
  6. Step 6: Final answer
    x = 29,252.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.