Home / 20,204.24-30,140.62-18,790.16

Finding the Fourth Proportional to 20,204.24, 30,140.62 and 18,790.16

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Solution

The fourth proportional to 20,204.24, 30,140.62 and 18,790.16 is: 28,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.24 : 30,140.62 = 18,790.16 : x
  2. Step 2: Convert to fraction form
    20,204.24/30,140.62 = 18,790.16/x
  3. Step 3: Cross multiply
    20,204.24x = 30,140.62 × 18,790.16
  4. Step 4: Simplify right side
    20,204.24x = 566,347,072.30
  5. Step 5: Solve for x
    x = 566,347,072.30/20,204.24
  6. Step 6: Final answer
    x = 28,031.10

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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.