Home / 20,180.10-30,270.24-7,032.45

Finding the Fourth Proportional to 20,180.10, 30,270.24 and 7,032.45

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Solution

The fourth proportional to 20,180.10, 30,270.24 and 7,032.45 is: 10,548.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.10 : 30,270.24 = 7,032.45 : x
  2. Step 2: Convert to fraction form
    20,180.10/30,270.24 = 7,032.45/x
  3. Step 3: Cross multiply
    20,180.10x = 30,270.24 × 7,032.45
  4. Step 4: Simplify right side
    20,180.10x = 212,873,949.29
  5. Step 5: Solve for x
    x = 212,873,949.29/20,180.10
  6. Step 6: Final answer
    x = 10,548.71

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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.